NOTICE the Oregon Department of Geology and Mineral Industries Is Publishing This Paper Because the Subject Matter Is Consistent with the Mission of the Department

Home , Black Crater, French Mountain, Geologic map, Laurel Mountain (Oregon), Pelican Butte, Rogers Peak

NOTICE The Oregon Department of Geology and Mineral Industries is publishing this paper because the subject matter is consistent with the mission of the Department. To facilitate timely distribution of information, this report has not been edited to the usual standards of the Department of Geology and Mineral Industries. Index to Geologic Maps of Oregon by U.S. Geological Survey Topographic Quadrangle Name,

Compiled by Peter L. Stark Map and Aerial Photography (MAP) Library University of Oregon Library Eugene, Oregon

Th~sindex covers geologic maps of Oregon that were published in several U. S. Geological Survey series. Only maps fiom the "L" series (Land Use and Land Cover Maps) have been excluded. The index also includes maps that have been published by the Oregon Department of Geology and Mineral Industries and the Oregon Water Resources Department. It lists only those geological maps with a scale of 1: 125,000 or larger. Quadrangles whose names have been changed are listed under each of their names. Each entry includes the following elements: The quadrangle name; a reference to the publication series that contains a geologic map of part or all of the quadrangle; the scale of the geologic map expressed in thousands; and a description of the coverage of the quadrangle provided by the geologic map. Where appropriate, the subject coverage is noted if the map is not a standard geologic map.

Abbreviations used for publications

U.S. Geological Survey B Bulletin (1883-) GF Geologc Folio (1 894- 1945) GP Geophysical Investigations Map ( 1946-) GQ Geologic Quadrangle Map (1949-) HA Hydrologic Investigations Atlas (1954-) I Miscellaneous Investigations Series Map Before 1973: Miscellaneous Geologic Investigations Map (195 5-) MF Miscellaneous Field Studies Map (195 1-) OF Open-File Report (1967-) OM Oil and Gas Investigations Map (1943-) P Professional Paper (1902-) W Water-Supply Paper (1896-) WRI Water Resources Investigation (1974-)

Oregon Department of Geology and Mineral Industries OrB Bulletin (1937-) OrGMS Geologic Map Series (1962-) Or0 - Open-File Report (1966-) OrOGI Oil and Gas Investigation (1963-) OrQM Quadrangle Map (1938-1968) Or SP Special Paper (197%)

Oregon Water Resources Department OrGRW Groundwater Report (196 I-) Oregon Geologic Map Index 1

Quad name Publication Scale Coverage

Abbott Butte 15' MF-1528 125k Complete Abbott Butte 15' OIQM-2 96k Complete Abbott Butte MF-1528 125k Complete Abbott Butte OIQM-2 96k Complete Adams W 1620 125k Complete Adams WRI 77-3 62k Umatilla Indian Reservation only Adobe Flat W 841 125k Complete Adrian OrGMS-2 125k Complete Adrian OrGMS-56 24k Complete Adrian OrGMS-77 look Complete Agness 15' B 1339 125k Complete Agness 15' GF-89 125k Complete Agness 15' MF-1381-A 48k Wild Rogue Wilderness Area only Agness 15' OrB 80 62k Coos County portion only Agness 15' OrB 90 62k E.-central portion Agness 15' OrB 93 125k Curry County portion only Agness B 1339 125k Complete Agness GF-89 125k Complete Agness OrB 90 62k E. of 124O06' Agness OrB 93 125k Complete Airlie North OF 80-678 62k Complete Airlie North OrB 35 62k Complete Airlie North OrGWR 28 62k Complete Airlie North W 890 125k Complete Airlie South GP-48 1 62k Complete Airlie South OF 80-678 62k N. of 40°39' Airlie South OM-150 62k Complete Airlie South OrB 98 62k Benton County portion only Airlie South OrGWR 28 62k N. of 40°39' Albany 15' GP-48 1 62k Complete, aerornagnetic Albany 15' OF 80-678 62k N. of 44O40' and W. of Willamette R. Albany 15' OM-150 62k Complete, W. of Willarnette R Albany 15' OrB 37 62k Complete Albany 15' OrB 84 62k Linn County portion only Albany 15' OrB 98 62k Benton County portion only Albany 15' OrGWR 28 62k N. of 44O40' and W. of Willarnette R Albany 15' W 2032 62k S. of 44O41' Albany 15' W 890 125k Complete Albany GP-48 1 62k Complete, aeromagnetic Albany OM-150 62k Complete Albany OrB 37 62k Complete Albany OrB 84 62k Linn County portion only Albany OrB 98 62k Benton County portion only Albany W 2032 62k S. of 44O41' Albany W 890 125k Complete Alder Creek B 1741-C look Complete except SW% Alder Creek OrGMS-77 look Complete Alderdale HA-3 87 125k Oregon portion only Aldrich Mountain 15' GQ-438 62k Complete Aldrich Mountain 15' MF-49 62k Complete Aldrich Mountain North GQ-438 62k Complete Aldrich Mountain North MF-49 62k Complete Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Aldrich Mountain South GQ-438 Complete Aldrich Mountain South MF-49 Complete Alfalfa B 1744-B S. of 44O02'30" Alfalfa OrQM-1 Complete Alkali Flat 1-540 Complete megany GF-73 Complete Allegany OrB 80 Complete megany OrB 87 Complete Allegany OrOGI 6 Complete Alsea 15' OM-162 Complete Alsea 15' OrB 81 Lincoln County portion only Alsea OM-162 Complete Alvord Hot Springs B 931-J SEN Alvord Hot Springs MF- 1876 Wilderness Area only Alvord Hot Springs MF-1916 Complete Amity OM-155 Complete Amity 010-8 1-5 Complete Amity W 1847 Complete Amity W 890 Complete Ana River MF-2 12 1 Complete Anderson Mountain 15' W 841 Tps.27,28 S., Rs. 34,35 E. Andies Prairie W 1620 Complete Andrews B 931-J Complete Andrews B 995-B W. % Aneroid Mountain B 1385-E Wildelness Area only Aneroid Mountain OrB 12 Complete Aneroid Mountain OrQM-10 Complete Anlauf 15' B 1122-D Complete Anlauf 15' B 850 S. %, except for SE portion Anlauf 15' WRI 76- 105 Douglas County only, except SE portion Anlauf B 1122-D Complete Anlauf WRI 76-105 Complete Anns Butte OF 82-847 Complete Antelope 15' 1-872 Complete Antelope 1-872 Complete Anthony Butte W 1597 N. of 45O05' Anthony Lakes OrQM-8 Complete Applegate MF-1528 Complete Applegate OF 81-1076 E. of 123O10' Applegate OrQM-3 Complete Arbuckle Mountain 010-86-5 Complete Arch Cape OM-42 Complete Arch Cape OrB 74 Complete Arch Cape QrOGI 14 Complete Arrastra Butte 1-872 Complete Arrowwood Point B 1744-A Wagon Butte area, SE corner Arrowwood Point OrQM-7 Complete Ashland 15' GQ-89 Complete Ashland 15' HA-42 1 Complete Ashland 15' MF-1528 Complete Ashland 15' OrB 94 N. of 42O07' Ashland 15' . OrQM-6 Complete Oregon Geologic Map Index 3

Quad name Publication Scale Coverage

Ashland 15' P 1521 W.% Ashland GQ-89 Complete Ashland HA421 Complete Ashland MF-1528 Complete Ashland OrB 94 N. of 42O07' Ashland OrQM-6 Complete Ashland P 1521 Complete Ashwood B 1161-D T.9 S., Rs. 15, 16 E. Ashwood B 1161-D T.10 S., Rs. 15, 16 E. Ashwood 1-872 Complete Aspen Lake MF-1507-A Wilderness Area only Aspen Lake MF-1528 Complete Astoria 15' OM-42 Complete Astoria 15' OrB 74 Complete Astoria 15' OrOGI 14 Complete Astoria 15' W 1899-A W.% Astoria OM42 Complete Astoria OrB 74 Complete Astoria OrOGI 14 Complete Athena WRI 77-3 Umatilla Indian Reservation only Austin OrQM-8 Complete Avery Creek OrGMS-77 Complete Avery Creek 010-92-16 Complete Axehandle Butte 1-872 Complete Bachelor Butte 1-1967 Complete Bacona OM42 Complete Bacona OrOGI 5 Complete Badger Lake MF-1379-A Wilderness Area only Baker B 879 Complete Baker HA-242 Complete Baker 010-77-6 Complete Baker City B 879 Complete Baker City HA-242 Complete Baker City 010-77-6 Complete Baker Point OM42 Complete Baker Point OrOGI 5 Complete Baldy Mountain OM- 186 Complete Baldy Mountain WRI 834017 Douglas County portion only Ballston OM-155 Complete Ballston 010-82-2 Complete Balm Creek Reservoir B 830 T.7 S., R.13 E., secs. 15-22, 27-34 Balm Creek Reservoir B 830 T.8 S., R.43 E., secs. 2-11, 14-18 Balm Creek Reservoir OrGMS-1 Complete Bandon 15' B 945-E Complete, except SEX Bandon 15' GF-73 Complete Bandon 15' OrB 80 Complete Bandon 15' OrB 87 Complete Bandon 15' OrOGI 6 Complete Bandon B 945-E Complete Bandon GF-73 Complete Bandon OrB 80 Complete Bandon OrB 87 Complete Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Bandon OrOGI 6 Complete Bannock Ridge B 1741-D W. of 117O13', S. of 43O19' Bannock Ridge MF-1903 Complete Bannock Ridge OffiMS-78 Complete Barklow Mountain GF-89 Complete Barklow Mountain OrB 80 Coos County portion only Barklow Mountain OrB 93 Curry County portion only Barklow Mountain OffiMS-5 Complete Barnhart W 1620 Complete Barton Lake W 841 Complete Bassey Creek W 1620 Complete Bates 15' OrB 39 N. of Middle Fork John Day R Bates 15' OrGMS-29 NE% only Bates 15' OrGMS-3 1 NW% only Bates 15' OrGMS-35 SW% only Bates OrB 39 N. of Middle Fork John Day R. Bath Canyon B 1743-B North Pole Ridge, N of 45O05' Bath Canyon 1-872 Complete Battle Ax 15' OrB 15 S. of 44O50' Battle Ax 15' OffiMS-46 SE% Battle Ax OrB 15 S. of 44O50' Bearbones Mountain B 893 NW% Beaver OF 94-21 Complete Beaver OM42 Complete Beaver OrB 74 Complete Beaver Butte WRI 76-26 Warm Springs Indian Reservation only Beaver Charlie Breaks MF-1926 Owyhee Canyon area Beaver Creek OM-1 10 Complete Beaver Creek WRI 76-105 S. of 43O47', E. of 123O28' Beaver Lake MF-1528 Complete Beaver Lake OrQM-2 Complete Beaverdam Creek OrQM-8 Complete Beaverton 15' OM42 N. of Willamette R Beaverton 15' OrB 60 Complete Beaverton 15' OrB 99 Clackamas County portion only Beaverton 15' W 1697 Complete except for SW% Beaverton 15' W 890 Complete Beaverton OM42 Complete Beaverton OrB 60 Complete Beaverton W 1697 Complete Beaverton W 890 Complete Beech Creek Summit OF 67-213 Complete Belknap Springs OrGMS-48 Complete Belshaw Meadows OF 67-2 13 Complete Bend bF-2189 W.% Bend OrB 89 Complete Bend OrQM-1 Complete Bend Airport OrQM-1 Complete Benham Falls OF 82-847 Complete Bennet Peak OrB 12 Complete Bennet Peak OrQM- 10 Complete Beulah 15' B 875 T.19 S., R.36 E., secs. 13,24,25,36 Oregon Geologic Map Index 5

Ouad name Publication Scale Coverage

Beulah 15' B 875 T.19 S., R37E., secs. 19,30,31 Beulah 15' B 875 T.20 S., R37 E., secs. 1,12,13,24 Beulah 15' B 875 T.20 S., R37 E., secs. 6,7,18,19 Big Baldy OF 80-532 Complete Big Butte Springs MF-1528 Complete Big Canyon 1-1021 N. of 44O10' Big Craggies B 1339 Complete Big Craggies MF-1240-A Wilderness Area only Big Craggies OrB 88 Complete Big Craggies OrB 93 Complete Big Lookout Mountain OrGMS-3 Complete Big Mud Flat OrGMS-78 Complete Big Weasel Springs GQ-438 Complete Big Weasel Springs MF-49 Complete Biggs Junction OrB 91 Complete Bill Peak B 945-E W. of 124O20' Bill Peak GF-73 Complete Bill Peak MF-302 Complete Bill Peak OrB 87 Complete Bill Peak OrOGI 6 Complete Bingham Springs W 1620 Complete Birch Creek Meadow OrCMS- 13 Complete Birkenfeld 15' OM42 Complete Birkenfeld 15' OrB 79 Clatsop County portion only Birkenfeld 15' OrOGI 14 W. % Birkenfeld 15' OrOGI 5 Complete Birkenfeld OM42 Complete Birkenfeld OrOGI 5 Complete Biscuit Hill B 1546 Complete Biscuit Hill GP- 197 Complete, aeromagnetic Biscuit Hill MF-1240-A Wilderness Area only Biscuit Hill MF-1528 Complete Biscuit Hill OrB 40 Complete Biscuit Hill OrB 93 Complete Blachly 15' OM-186 Complete Black Butte 010-92-3 Complete Black Crater 010-92-3 N. of 44O22' Blaine 15' OF 94-21 Complete Blaine 15' OM42 Complete Blaine 15' OrB 79 SW% Blaine 15' OrB 79 T.l S., Rs.7,8,9 W. Blaine 15' OrB 79 T.2 S., R.7 W., secs. 1-8, 17-20 Blaine 15' OrB 79 T.2 S., R.8 W., secs. 16, 10-16 Blaine 15' PrB 79 T.2 S., R.8 W., secs. 22-24, 32-34 Blaine 15' OrB 79 T.2 S., R.9 W., secs. 1,2 Blaine OM42 Complete Blaine OrB 79 S. of 4S020' Blalock Island HA-3 87 Oregon portion only Blair Lake 1-1891 Complete Blue Canyon B 879 Complete Blue Canyon HA-242 E.%, secs. 1,12, T.10 S., R38 E. Blue Canyon HA-242 E.%, secs. 24,36, T.9 S., R38 E. 6 Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Blue Canyon HA-242 T.9 S., R39 E., secs. 25-36 Blue Canyon HA-242 T.10 S., R39 E., secs. 1-12 Boardman HA-387 Oregon only Bogus ~ench OrGMS-78 Complete Bogus Bench 010-92-2 Complete Bone Mountain 15' MF-1381-A Wild Rogue Wilderness Area only Bone Mountain 15' MF-1528 Complete Bone Mountain 15' OrB 80 Coos County portion only Bone Mountain 15' OrB 93 Cuny County portion only Bone Mountain MF-1528 Complete Bone Mountain OrB 80 Coos County portion only Bone Spring OF 83-374 Complete Bonneville Dam 15' OrB 82 Bull Run watershed only Bonneville Dam 15' OrB 91 T.2 N., R8 E., secs. 1-24 Bonneville Dam 15' OrB 91 T.3.N., R8E. Bonneville Dam OrB 91 E. of 121°55' Borax Lake B 931-J Complete Borax Lake B 995-B W.% Borax Lake OF 82-1 126 Complete Bosley Butte B 1339 Complete Bosley Butte OrB 90 Complete Bosley Butte OrB 93 Complete Boswell Mountain MF-1528 Complete Boswell Mountain OrB 94 Complete Boswell Mountain OrGMS-70 Complete Boswell Mountain OrQM-2 Complete Boulder Butte OrB 39 N. of Middle Fork John Day R. Boulder Butte OrGMS-3 1 Complete Boulder Lake WRI 76-26 Complete Bourne OrGMS- 19 Complete Bourne OrQM-8 Complete Bowen Valley HA-242 E. part, secs. 25,36, T.9 S., R39 Bowen Valley HA-242 T.9 S., R40 E., secs. 25-36 Bowen Valley HA-242 E.part,secs. 1,12,T.lOS.,R39E Bowen Valley HA-242 T.10 S., R40 E., SWS. 1-12 Bowen Valley 010-78-3 Complete Brady Creek W 1619-M Cow valley only Brandy Peak 1-1735 Complete Brandy Peak MF-1528 Complete Brandy Peak OrB 93 Complete Brannan Gulch GQ-1744 Complete Brannan Gulch B 879 Complete Breitenbush Hot Springs 15' B 1230-D Wilderness Area only Breitenbush Hot Springs 15' OrB 15 S. of 44O50' Breitenbush Hot springs 15' OrGMS-46 SWW Breitenbush Hot Springs 15' OrSP 9 Complete Breitenbush Hot Springs 15' WRI 76-26 Warm Springs Indian Reservation only Breitenbush Hot Springs OrB 15 S. of 440501 Breitenbush Hot Springs OrGMS-46 Complete Breitenbush Hot Springs 010-88-5 Hot springs area only Breitenbush Hot Springs OrSP 9 Complete Bretz Mine B 931-N Complete Oregon Geologic Map Index 7

Quad name Publication Scale Coverage

Bretz Mine B 1742-B N. % Brewer Reservoir 1-872 Complete Bridal Veil 15' OrB 82 Bull Run watershed only Bridal Veil 15' WRI 90-4196 W. of 122O09' Bridal Veil WRI 90-4196 W. of 122O09' Bridge GF-73 Complete Bridge OrB 87 Complete Bridge OrOGI 6 Complete Bridgeport 15' B 846-A T.13 S., R42 E., secs. 8, 15-22 Bridgeport 15' W 1619-M Cow Valley only Brightwood OF 80-1049 S. of 45O24'15" Brightwood OrB 82 Complete Brightwood OrGWR 29 S. of 45O24'15" Brogan 15' B 875 T.18 S., R.41 E., secs. 8-11, 13-17 Brogan 15' B 875 T.18 S., R42 E., secs. 17-18 Broken Top 15' B 875 Wilderness Area only Broken Top 15' OrSP 2 SW% Broken Top 15' OrSP 21 NW% Broken Top 1-1967 S. % Broken Top OrSP 2 Complete Brookings OrB 90 Complete Broolungs OrB 93 Complete Brown Creek OrB 91 Complete Brown Creek OrGWR 33 T.2 S., R. 12 E., secs. 29-32 Brown Mountain MF-1528 .Complete Brownlee Dam OF 88-657 SEX Brownsboro GQ-89 Complete Brownsboro MF-1528 Complete Brownsboro OrB 94 W. of 1220401 Brownsboro OrQM-6 Complete Brownsville 15' OrB 84 Linn County portion only Brownsville 15' W 2040 W. % Brownsville OrB 84 Complete Brownsville W 2040 Complete Brushy Bald Mountain B 1339 Complete Brushy Bald Mountain GF-89 Complete Brushy Bald Mountain OrB 90 Complete Brushy Bald Mountain OrB 93 Complete Buchanan W 841 Complete

Buck Butte ' 1-555 Complete Buck Butte 1-872 Complete except NW '/4 Buck Trough Spring OrQM-4 Complete Buckhorn Canyon 1-872 Complete Buckskin Peak B 1546 Complete Buckskin Peak GP- 197 Complete, aeromagnetic Buckskin Peak MF- 1240-A Wilderness Area only Buckskin Peak MF-1528 Complete Buckskin Peak OrB 40 Complete Buckskin Peak OrB 93 Cuny County portion only Buckskin Peak OrB 100 Josephine County portion only Buffalo Well OF 80-846 T.27 S., R.20 E., secs. 7-15 Buffalo Well OF 80-846 T.27 S., R21 E., sec 7 Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Buffalo Well P 383-B Complete Bull Lake MF-2121 Complete Bull Run OF 80-1049 S. of 45O25'

Bull Run OrB 82 ' Bull Run watershed only Bull Run OrGWR 29 S. of 45O25' Bull Run WRI 90-4196 W. of 122O09' Bull Run Lake MF-1379-A Wilderness Area only Bull Run Lake OF 80-1049 S. of 45O24'15" Bull Run Lake OrB 82 Bull Run watershed only Bull Run Lake OrGWR 29 S. of 45O24'15" Bullards B 945-E Complete Bullards GF-73 Complete Bullards OrB 87 Complete Bullards OrOGI 6 Complete Bullrun Rock 010-79-6 Complete Bullrun Rock OrQM-4 Complete Bunker Creek GQ-25 Complete Bunker Creek MF-1528 Complete Bunker Creek OrB 100 Complete Burn Butte OF 83-660 Roadless Area only Burns 15' MF-320 Complete Burns 15' OffiMS-20 S.% Burns 15' W 841 Complete except for NE% Burns MF-3 20 Complete Burns OffiMS-20 Complete Burns W 841 Complete Burns Butte MF-3 20 Complete Burns Butte OffiMS-20 Complete Burns Butte W 841 Complete Burns NE MF-320 Complete Burns NE W 841 Complete Burns NW MF-320 Complete Burns NW W 841 Complete Burnt Flat OffiMS-78 Complete Butler Butte MF-1528 Complete Butler Butte OrQM-2 Complete Butte Falls 15' MF-1528 Complete Butte Falls 15' OffiMS-80 NW% Butte Falls 15' OrQM-2 Complete Butte Falls MF-1528 Complete Butte Falls OrQM-2 Complete Butter Creek Junction HA-387 Complete Butter Creek Junction W 1620 Complete Buxton OM42 Complete Buxton %V 1697 Complete Cabbage Hill W 1620 Complete Cabbage Hill WRI 77-3 Complete Cabin Lake P 383-B Complete Cactus Mountain OF 78-805 Oregon portion only Cactus Mountain OffiMS-6 Oregon only Cadle Butte 1-54 1 Complete Cairo OrGMS-2 Complete Oregon Geologic Map Index 9

Quad name Publication Scale Coverage

Cairo OrGMS-77 Complete Cairo OrGWR 34 Complete Calf Ranch Mountain GF-89 Complete Calf Ranch Mountain OrB 80 Coos County portion only . Calf Ranch Mountain OrB 87 Complete Calf Ranch Mountain OrB 90 Curry County portion only Calf Ranch Mountain OrB 93 Curry County portion only Calf Ranch Mountain 010-82-3 Complete Callahan WRI 74-32 S. of 43'22'. E. of 123O35' Camas 15' B 1119 Complete Camas 15' OrQM-9 Oregon portion only Camas 15' W 1793 W. side of Sandy R Camas 15' WRI 90-4 196 Complete Camas B 1119 Complete Camas OIQM-9 Oregon portion only Camas W 1793 Complete Camas WRI 88-41 10 N. of 45O3 l', W. of 122O25' Camas WRI 90-4 196 Complete Camas Valley 15' OrB 80 Coos County portion only Camas Valley 15' OrGMS-68 NE% Camas Valley 15' OrGMS-76 SW% Camas Valley 15' OrGMS-85 NW% Camas Valley 15' OrGMS-86 SE% Camas Valley 15' WRI 77-28 Douglas County portion only Camas Valley OrB 80 Coos County portion only Camas Valley OrGMS-76 Complete Camas Valley WRI 77-28 Douglas County portion only Canby B 1119 Complete Canby OF 80-1049 Complete except NW% Canby OM42 Complete Canby OrB 99 Complete Canby OrGWR 29 Complete except NW% Canby OIQM-9 Complete canby W 1697 W. side of Willamette R Canby W 890 Complete Candle Creek B 1230-D Wilderness Area only Candle Creek WRI 76-26 Warm Springs Indian Reservation only Cannibal Mountain 1-866 Complete Cannibal Mountain OF 72-35 1 Complete Cannibal Mountain OM-88 Complete Cannibal Mountain OrB 81 Lincoln County portion only Cannibal Mountain OrB 85 Lane County portion only Cannibal Mountain WRI 76-90 Lincoln County portion only Cannon Beach 15' OM-42 Complete Cannon Beach 15' OrB 74 Complete Cannon Beach 15' OrOGI 14 Complete Canyon Meadows Lake 1-1021 N. of 44O 10' Canyon Mountain B 922-D N. of 44O20' Canyon Mountain B 1498 E. % Canyon Mountain 1-1021 T.14 S., R31 E., secs. 33-36 Canyon Mountain 1-1021 T. 14 S., R32 E., sec. 3 1 Canyon Mountain 1-1021 T.15 S., R.31 E., secs. 1-4 Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Canyon Mountain 1-1021 T.15 S., R32 E., secs. 6-8 Canyon Mountain 1-1021 T.16 S., R31 E., secs. 9-10 Canyon Mountain MF-5 1 Complete Canyonville 15' B 931-1 T.30 S., R6W. Canyonville 15' GF-2 18 Complete Canyonville 15' MF-1528 Complete Canyonville 15' WRI 79-8 E. of 123O27' Canyonville B 93 1-1 T.30 S., R6 W. Canyonville GF-218 Complete Canyonville MF-1528 Complete Canyonville WRI 79-8 Complete Cape Arago B 945-E Complete Cape Arago GF-73 Complete Cape Arago OrB 80 Complete Cape Arago OrB 87 Complete Cape Arago OrOGI 6 Complete Cape Blanco 15' GF-89 Complete Cape Blanco 15' OrB 90 Complete Cape Blanco 15' OrB 93 Complete Cape Blanco GF-89 Complete Cape Blanco OrB 90 Complete Cape Blanco OrB 93 Complete Cape Ferrelo 15' OrB 69 T.38 S., R14 W., SKS.31-36 Cape Ferrelo 15' OrB 69 T.38 S., R15 W., secs. 2-11 Cape Ferrelo 15' OrB 90 Complete Cape Ferrelo 15' OrB 93 Complete Cape Foulweather 15' 1-868 Complete Cape Foulweather 15' OF 72-350 Complete Cape Foulweather 15' OM-97 Complete Cape Foulweather 15' OrB 81 Complete Cape Foulweather 15' WRI 76-90 Complete Cape Sebastian B 1339 Complete Cape Sebastian OrB 69 Complete Cape Sebastian OrB 90 Complete Cape Sebastian OrB 93 Complete Carberry Creek MF-1528 Complete Carberry Creek OF 81-1076 E. of 123O10' Carberry Creek OF 92695 Complete Carberry Creek OrQM-3 Complete Carlton OM-42 Complete Carlton OrB 60 Complete Carney Butte W 1620 Complete Carpenter Mountain 010-92-3 N. of 44O22' Carpente~lle OrB 69 T.38 S., R14 W., SKS. 33-35 Carpente~lle OrB 69 T.39S.,R.14 W., secs. 2-4,9-11 Carpenterville OrB 90 Complete Carpente~lle OrB 93 Complete Carson OrB 91 N. of 4S038' Carson Point W 841 Complete Cascade Gorge MF-1528 Complete Cascade Gorge OrQM-2 Complete Cascade Head OF 90-4 13 Complete Oregon Geologic Map Index 11

Quad name Publication Scale Coverage

Cascade Head OM-97 Complete Cascade Head OrB 74 Tillamook County portion only Cascade Head WRI 76-90 Lincoln County portion only Cascadia 15' OrB 84 T.13 S., R3E., secs. 4-9, 16-21 Cascadia 15' OrB 84 T. 13 S., R3E., secs. 27-34 Cascadia 15' OrB 84 T.14 S., R3 E., secs. 1-12 Cascadia OrB 84 Complete except for National Forest Castle Creek MF-5 1 Complete Castle Rock 15' OrQM-4 Complete Castle Rock OrQM-4 Complete Cathlamet 15' OM42 Oregon portion only Cathlamet 15' OrB 79 Clamp County portion only Cathlamet 15' OrOGI 14 W.% Cathlamet 15' OrOGI 5 Complete Cathlamet OM42 Oregon portion only Cathlamet OrOGI 14 Complete Cathlamet OrOGI 5 Complete Cathlamet Bay OM42 Complete Cathlamet Bay OrB 74 Complete Cathlamet Bay OrOGI 14 Complete Cave Junction 15' B 846-B T.40 S., R.8 W., secs. 7-10, 15-36 Cave Junction 15' B 846-B T.41 S., R.8 W., secs. 1-4, 9-16 Cave Junction 15' GP-97 Complete, aeromagnetic Cave Junction 15' MF-1528 Complete Cave Junction 15' OrB 40 Complete Cave Junction 15' OrB 100 Complete Cave Junction 15' OrGMS-38 NW% Cave Junction GP-97 Complete, aeromagnetic Cave Junction MF-1528 Complete Cave Junction OrB 40 Complete Cave Junction OrB 100 Complete Cave Junction OrGMS-38 Complete cayuse W 1620 Complete cayuse WRI 77-3 Umatilla Indian Reservation only Cecil HA-3 87 Complete Cedar Butte OF 94-21 Complete Cedar Butte OM42 Complete Cedar Mountain OrGMS-78 Complete Cedar Mountain 010-92-5 Complete Cedar Springs Mountain GF-2 18 Complete Cedar Springs Mountain MF-1528 Complete Cedar Springs Mountain MF-217 1 SE% Cedar Springs Mountain WRI 79-8 N. of 42'48' Chandler Mountain OrB 84 Lim County portion only Chapman OM42 Complete Chapman OrB 3 1 Complete Chapman WRI 90-4196 Complete Charleston B 945-E Complete Charleston GF-73 Complete Charleston OrB 80 Complete Charleston OrB 87 Complete Charleston OrOGI 6 Complete 12 Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Cheny.de 15' OF 80-1049 62k Central213 Cherryvllle 15' OrB 82 31k Bull Run Watershed only Cheny.de 15' OrGWR 29 62k Central213 Cherryvllle 15' WRI 90-4196 look NW% Cherryvllle OF 80-1049 62k Complete Chenyville OrGWR 29 62k Complete Cherryville WRI 90-4196 look N. % Cheshire OM-110 62k Complete Cheshire W 890 125k Complete Cheshire W 2018 62k Complete Chetco Peak 15' B 1546 125k S. of 42O12' Chetco Peak 15' GP-197 96k Complete, aeromagnetic Chetco'Peak 15' MF-1240-A 62k Wilderness Area only Chetco Peak 15' MF-1423-A 62k T.41 S., R.9 W., secs. 3-10, 15-18 Chetco Peak 15' MF-1423-A 62k T.41 S., R.10 W,, secs. 1-18 Chetco Peak 15' MF- 1423-A 62k T.41 S., R.ll W., secs. 1-4, 9-16 Chetco Peak 15' MF-1528 125k Complete Chetco Peak 15' OrB 40 96k Complete Chetco Peak 15' OrB 52 24k T.38 S., R9 W., secs. 19,30 Chetco Peak 15' OrB 52 24k T.39 S., R10 W., secs. 1-3,lO-12,14 Chetco Peak 15' OrB 52 24k T.38 S., R10 W., secs. 25,35,36 Chetco Peak 15' OrB 88 48k Kalmiopsis Wilderness Area only Chetco Peak 15' OrB 93 125k Curry County portion only Chetco Peak 15' OrB 100 125k Josephine County portion only Chetco Peak B 1546 125k S. of 42O12' Chetco Peak GP- 197 96k Complete, aeromagnetic Chetco Peak MF-1240-A 62k Kalmiopsis Wilderness Area only Chetco Peak MF-1528 125k Complete Chetco Peak OrB 40 96k Complete Chetco Peak OrB 88 48k Complete Chetco Peak OrB 93 125k Complete Chicken Hills MF- 1528 125k Complete Chicken Spring B 93 1-N 62k Complete Chicken Spring B 1742-B look N.% except western edge Chief Joseph Mountain B 1385-E 62k Wilderness Area only Chief Joseph Mountain OrB 12 96k Complete Chief Joseph Mountain OrQM-10 125k Complete Chimney Springs B 1743-B 62k NW% Chimney Springs 1-872 125k Complete China Cap B 1385-E 62k Complete China Cap W 1597 62k Complete China Flat GF-89 125k Complete China Flat OrB 80 62k Complete China Flat OrGMS-5 62k Complete China Hat OF 82-847 62k Complete ChipmunkRidge MF-1528 125k Complete Christmas Lake P 383-B 62k Complete Christmas Valley P 383-B 62k Complete Chrome Ridge GP-197 96k Complete, aeromagnetic Chrome Ridge MF-1349 62k Complete Chrome Ridge MF-1528 125k Complete Chrome Ridge OrB 40 96k Complete 2/16/95 Oregon Geologic Map lndex 13

Quad name Publication Scale Coverage

Chrome Ridge OrB 100 Complete Chucksney Mountain 15' 1-1891 Complete Chucksney Mountain 15' MF-1952 Wilderness Area only Chucksney Mountain 1-1891 Complete Chucksney Mountain MF-1952 N. % Circle Bar W 841 Complete Clarke HA-387 Complete Clamo 15' B 1743-C Spring Basin Wilderness Study Area Clamo 15' 1-872 Complete Clamo B 1743-C S. of Pine Creek, E. of John Day R. Clarno 1-872 Complete Clatskanie 15' OM42 Complete for Oregon Clatskanie 15' OrOGI 5 Complete for Oregon Clatskme OM42 Complete Clatskanie OrOGI 5 Complete Clay Creek OM-186 Complete Clay Creek WRI 83-4017 Douglas County portion only Clear Creek OM42 Complete Clear Creek OrOGI 5 Complete Clear Lake OF 83-662 Wilderness Area only Clear Lake 010-92-3 N. of 44O22' Clear Lake Ridge OrGMS-6 Complete Cleveland Ridge MF-1528 Complete Cleveland Ridge MF-2171 NW% Cleveland Ridge OrGMS-73 Complete Cleveland Bdge OrQM-2 Complete Clevenger Butte OrQM-4 Complete Cline Falls OrB 89 E. of 121°18'30" Cline Falls OIQM-1 Complete Clover Flat OF 80-532 Complete Coal Creek OM32 Complete for Oregon Coal Creek OrOGI 5 Complete for Oregon Coburg OM-1 10 Complete Coburg W 890 Complete Coburg W 2018 Complete Cochran OM42 Complete Co5Butte MF-2079 SE% Coffin Mountain OrGMS-47 Complete Coleman Point OF 80-532 Complete Collier Butte 15' B 1339 Complete Collier Butte 15' MF-1240-A Wilderness Area only Collier Butte 15' OrB 88 SEX Collier Butte 15' OrB 93 Complete Collier Butte B 1339 Complete Collier Butte hF-1240-A Wilderness Area only Collier Butte OrB 93 Complete Collins Butte 1-872 Complete Colony Ranch B 931-J Complete Colony Ranch B 995-B T.40 S., R.35 E. Colton W 1997 Complete Committee Creek OIQM-7 Complete Conant Basin 1-540 Complete Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Conley W 1597 Complete Comor Creek OrGMS- 12 Complete for Oregon Cook Creek OF 94-21 Complete CookCreek OM-42 Complete CookCreek OrB 79 N. of 45O43' Coombs Canyon W 1620 Complete Coos Bay 15' GF-73 Complete Coos Bay 15' OrB 80 Complete Coos Bay 15' OrB 87 Complete Coos Bay 15' OrOGI 6 Complete Coos Bay GF-73 Complete Coos Bay OrB 80 Complete Coos Bay OrB 87 Complete Coos Bay OrOGI 6 Complete Coos Mountain OrB 80 Complete Copeland Reservoirs OrGMS-78 Complete Copeland Reservoirs 010-93-3 Complete Copperfield 15' B 1741-B Sheep Mountain Wilderness Study Area Copperfield 15' MF-1612-A Roadless Area only Copperfield 15' OF 88-657 S. %, E. of canyon rim Copperfield B 1741-B W. of Snake R, S. of Oxbow Coquille 15' GF-73 Complete Coquille 15' OrB 80 Complete Coquille 15' OrB 87 Complete Coquille 15' OrOGI 6 Complete Coquille GF-73 Complete Coquille OrB 80 Complete Coquille OrB 87 Complete Coquille OrOGI 6 Complete Cornucopia 15' B 1385-E Wilderness Area only Cornucopia 15' MF-1612-A Roadless Area only Cornucopia 15' OrB 12 Complete Cornucopia 15' OrB 3 Baker County portion only Cornucopia 15' OrQM- 10 Complete Cornucopia B 1385-E Wilderness Area only Cornucopia OrB 3 Baker County portion only Cornucopia OrB 12 Complete Cornucopia OrQM-10 Complete Corvallis 15' GP48 1 Complete. aeromagnetic Corvallis 15' OF 80678 N. of 4J039' Corvallis 15' OM- 150 Complete Corvallis 15' OrB 98 Benton County portion only Cornallis 15' OrGWR 28 N. of 44O39' Cornallis 15' W 2032 SEX Corvallis GP-48 1 Complete, aeromagnetic Corvallis OM- 150 Complete Corvallis OrB 98 Complete Corvallis OrB 98 Complete Corvallis W 2032 Complete Cottage Grove 15' OM-1 10 Complete Cottage Grove 15' W 890 E. % Cottage Grove 15' WRI 76-105 Douglas County portion only Oregon Geologic Map Index 15

Quad name Publication Scale Coverage

Cottage Grove OM-1 10 Complete Cottage Grove W 890 Complete Cottage Grove Lake B 1122-D Complete Cougar Peak OF 80-532 Complete Cougar Reservoir OrSP 15 W. of 122O10' Cougar Reservoir MF-1952 E. % Cougar Reservoir OrGMS-48 Complete Courtrock 15' OF 67-212 Complete Courthouse Rock OF 67-212 Complete Cove W 1597 Complete Cow Lakes OrGMS-78 Complete Cow Lakes 010-924 Complete Cowhorn Mountain 1-1891 Complete Cowhorn Mountain OF 83-66 1 Wilderness Area only Cowhorn Mountain OrSP 15 N. of 43O28' Cox Flat OF 80-532 Complete Coyote Buttes W 841 Complete Crabtree GP-212 Complete, aeromagnetic Crabtree OrB 15 N. of 44O43' Crabtree OrB 84 Lim County portion only Crabtree OrQM-5 Complete Crabtree W 890 Complete Crack-in-the-Ground P 383-B Complete Craft Point MF-1237 Pine Creek area only Craig Mountain HA-242 E. part, secs. 1,12,13, T.5 S., R38 E. Craig Mountain HA-242 T.5 S., R.39 E., secs. 1-18 Craig Mountain OrSP 6 Complete Craig Mountain W 1597 Complete Crane 15' W 841 Complete Crane W 841 Complete Crane Prairie OrQM-4 Complete Crane Prairie Reservoir 1-1967 E. % Crane Prairie Reservoir MF-1952 N. 113 Crater Lake East MF-1528 Complete Crater Lake West MF-1528 Complete Crawfish Lake Om-8 Complete Crawfordsville OrB 84 Lim County portion only Creswell OM-1 10 Complete Creswell W 890 Complete Cricket Flat W 1597 S. 4j035' Crookpeak P 1124-E Complete Crow 15' OM-1 10 Complete Crow 15' WRI 76-105 T.21 S., Rs. 5,6,7 W. Crow OM-1 10 Complete Crow Butte HA-387 Complete for Oregon Crowley OrGMS-78 Complete Crowley 010-93-4 Complete Crystal Spring GQ-1653 Complete Crystal Spring MF-1528 Complete Cuddy Mountain OF 88457 Complete Culver 1-555 Complete Cummins Peak OrB 85 Complete 16 Oregon Geologic Map Index 2/16/95

Quad name Publication Scale - Coverage

Cummins Peak OM- 186 Complete Cuprum 15' OF 78-805 Hells Canyon area only Cuprum 15' OffiMS-6 Complete for Oregon Curtin B 1122-D Complete Curtin WRI 76-105 Complete Dallas 15' OF 80-678 Complete Dallas 15' OrB 35 Complete Dallas 15' OffiWR 28 Complete Dallas 15' W 890 E. % Dallas OF 80-678 Complete Dallas OrB 35 Complete Dallas OrGWR 28 Complete Dallas W 890 Complete Dalreed Butte HA-387 Complete Daly Creek OrGMS- 12 Complete Damascus B 1119 Complete Damascus OF 80-1049 S. of 45O25' Damascus OrB 99 Clackamas County portion only Damascus OrGMS-60 Complete Damascus OrGWR 29 S. of 4S025' Damascus OrQM-9 Complete Damascus W 1793 Complete Damascus WRI 90-4196 N. of Clackamas R Daniels Creek GF-73 Complete Daniels Creek OrB 80 Complete Daniels Creek OrB 87 Complete Daniels Creek OrOGI 6 Complete Dant 1-556 Complete Dant WRI 76-26 Wann Springs Indian Reservation only Days Creek 15' GF-2 18 Complete Days Creek 15' MF-1528 Complete Days Creek 15' MF-2171 SE1/8 Days Creek 15' WRI 79-8 N. of 42O48' Days Creek GF-218 Complete Days Creek MF-1528 Complete Days Creek WRI 79-8 Complete Dayton OM-155 Complete Dayton 010-8 1-6 Complete Dayton W 890 Complete Dayton W 1833 E. of Willamette R. Dayton W 1847 W. of Willamette R. De Bord Peaks OrQM-4 Complete Deacon Crossing MF-1926 Owyhee Canyon area Deadhorse Ridge OF 78-805 Hells Canyon area only Deadhorse Ridge OrGMS-6 Oregon only Deadman Point B 1385-E Wilderness Area only Deadman Point MF-1612-A Roadless Area only Deadman Point OrB 3 Baker County portion only Deadman Point OrB 12 Complete Deadman Point OrQM-10 Complete DeardoeMountain OrQM-4 Complete Dee OrB 91 E. of 121°40' 2/16/95 Oregon Geologic Map Index 17

Quad name Publication Scale Coverage

Dee OrGWR 10 Valley floor, West Fork Hood R. Deer Head Peak OM-204 Complete Deer Head Peak OrB 87 Complete Deer Head Peak WFU 83-4017 Complete Deer Head Point OM-204 Complete Deer Head Point OrB 87 Complete Deer Head Point WRI 83-4017 Complete Deer Island OM-42 Complete for Oregon Deer Island OrB 3 1 Complete for Oregon Degner Canyon B 1161-D T.9 S., Rs. 15,16 E. Degner Canyon 1-872 Complete Delena OM-42 Complete Delena OrOGI 5 Complete Delintment Lake 15' OrB 58 Grant County portion only Dement Creek GF-89 Complete Dement Creek OrB 80 Coos County portion only Dement Creek OrB 87 T.30 S., R12 W., secs. 4-9, 15-22 Dement Creek OrB 93 Cuny County portion only Dement Creek OrGMS-5 Complete Depoe Bay 1-868 Complete Depoe Bay OF 72-350 Complete Depoe Bay OM-97 Complete Depoe Bay OrB 8 1 Complete Depoe Bay WFU 76-90 Complete Desolation Butte 15' GQ-1654 Complete Desolation Butte 15' MF-1581-C 4 mi both banks, North Fork John Day R. Desolation Butte GQ-1654 Complete Detroit 15' OrB 15 N. of 44O40' Detroit 15' OrGMS 46 NE% Detroit 15' OrGMS 47 SE% Detroit OrB 15 N. of 44'40' Devils Graveyard OM-204 Complete Devils Craveyard WFU 83-4017 Complete Devils Lake 1-868 Complete Devils Lake OF 72-350 Complete Devils Lake OM-97 Complete Devils Lake OrB 81 Complete Devils Lake WRI 76-90 Complete Devils Peak GQ-1653 Complete Devils Peak MF-1507-A Roadless Area only Devils Peak MF-1528 Complete Devine Ridge South W 841 Complete Diamond W 841 Complete Diamond Butte B 1741-G Complete Diamond Butte hk-1901 Complete Diamond Butte OrGMS-78 Complete Diamond Lake 15' 1-1891 Complete Diamond Lake 15' OF 83-660 Roadless Area only Diamond Lake 1-1891 Complete Diamond Peak 1-1891 Complete Diamond Peak OF 83-661 Wilderness Area only Diamond Peak OrSP 15 Complete Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Diamond Swamp W 841 125k Complete Diablo Peak MF-2121 48k Complete Digger Mountain OM-162 62k Complete Dixie Meadows OrGMS-35 24k Complete Dixie Mountain B 1119 62k Complete Dixie Mountain OM42 125k Complete Dixie Mountain W 1697 48k Complete Dixie Mountain WRI 90-4 196 look NE of Tualatin Mountains Dixonville 15' GF-49 125k Complete Dixonville 15' WRI 79-8 62k S. of 43'05' Dixonville GF-49 125k Complete Dodson Butte GF-49 125k Complete Dodson Butte WRI 79-8 62k S. of 43O05' Dog Mountain 15' W 841 125k Complete Dog Mountain W 841 125k Complete Dog River MF-1379-A 62k Wilderness Area only Dolph OF 9 1-277 24k Complete Dolph OM-97 62k Complete Dolph OrB 74 62k Tillamook County portion only Dolph WRI 76-90 look Lincoln County portion only Donaldson Creek OF 67-2 12 62k Complete Donnybrook 1-872 125k Complete Dooley Mountain B 879 125k Complete Dooley Mountain GQ-1694 24k Complete Dooley Mountain OF 90-3 12 24k Complete Doolittle Creek B 1742-B look Complete except eastern edge Doolittle Creek MF-1471 24k Complete Dora OrB 80 62k Complete Dora OrB 87 62k T.28 S., R. 10 W., secs. 4-9, 16-18 Dora OrB 87 62k T.28 S., R.ll W., secs. 1-3, 10-15 Dora OrB 87 62k T.28 S., R. 11 W., secs. 22-24 Double Mountain OrGMS-2 125k Complete Double Mountain OrGMS-58 24k Complete Double Mountain OrGMS-77 look Complete Dome Peak OF 94-21 62k Complete Dome Peak OrB 79 62k T.3 S., R7 W., secs. 7-8, 17-20 DmePeak OrB 79 62k T.3 S., R7 W., secs. 29-32 Dome Peak OM42 125k Complete Downey Canyon OrGMS-78 look Complete

Downey Canyon 010-92-7 ' 24k Complete Drain 15' B 1122-D 62k Complete Drain 15' WRI 76-105 62k E. of 123O28' Drain B 1122-D 62k Complete Drain \IrRI 76-105 62k Complete Drake Butte 1-542 62k Complete Drake Butte OrQM-7 96k Complete Drake Crossing OrGMS-50 24k Complete Drake Crossing W 1997 48k Complete Drake Peak P 1124-E 1lOk W.% Drake Peak NE P 1124-E 1lOk S. !h Drews Gap OF 80-532 48k Complete Drewsey 15' B 875 62k T. 19 S., R.35 E., secs. 24-27, 34-36 2/16/95 Oregon Geologic Map Index 19

Quad name Publication Scale Coverage

Drewsey 15' B 875 T.19 S., R36 E., secs. 14-15, 19-36 Drewsey 15' B 875 T.20 S., R35 E., secs. 1,2,12,13 Drewsey 15' B 875 T.20 S., R36 E., SSS. 2-11, 14-23 Drumhill Ridge W 1597 S.% Druxtunond Basin MF-1926 Owyhee Canyon area Dry Creek Bench B 1742-B S. of 42O19' except SW% Dry Creek Bench MF-1940 Complete Dry Creek Ranch B 1742-B S. of 42O19' except SW%$ Dry Creek Ranch MF- 1940 Complete Dry Creek Rim MF- 1926 Complete Duck Creek MF-1612-A Roadless Area only Duck Creek OrGMS-6 Complete Dufur East 1-566 Complete Dufur West 1-556 Complete Duncan W 1620 Complete Duncan WRI 77-3 Umatilla Indian Reservation only Duncan Reservoir P 383-B N. % Dundee OM-42 Complete Dundee OrB 60 CompIete Dunnean W 841 W. of 118O20' Durkee 15' OrGMS-3 Complete Durkee OrGMS-3 Complete Dutchman Butte 15' MF-1528 Complete Dutchman Butte MF-1528 Complete Dutchman Creek 1-872 Complete Dutchman Peak GQ-89 Complete Dutchman Peak MF-1528 Complete Dutchman Peak OF 81-1076 Complete Dutchman Peak OrQM-6 Complete Eagle Butte 1-555 Complete Eagle Butte OrGMS-43 Complete Eagle Butte WRI 76-26 Warm Springs Indian Reservation only Eagle Cap 15' B 1385-E Wilderness Area only Eagle Cap 15' OrB 3 T.6 S., R44 E., SKS. 1-3, 9-16 Eagle Cap 15' OrB 3 T.6 S., R44 E., secs. 21-28, 32-36 Eagle Cap 15' OrB 3 T.6 S., R45 E., secs. 6,7,18,19,30 Eagle Cap 15' OrB 12 Complete Eagle Cap 15' OrQM- 10 Complete Eagle Cap B 1385-E Complete Eagle Cap OrB 12 Complete Eagle Cap OrQM-10 Complete Eagle Point GQ-89 Complete Eagle Point HA-3 92 Complete Eagle Point MF-1528 Complete Eagle Point OF 81-1076 S. of 42O25' Eagle Point OrB 94 Complete Eagle Point 010-93-13 Complete Eagle Point OrQM-6 Complete Eagle Point P 1521 S.'h Eagle Rock 15' 1-540 Complete Eagle Rock 1-540 Complete East Lake OF 82-847 Complete Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Echo HA-3 87 Complete Echo W 1620 Complete Echo Mountain 15' MF-1952 Wilderness Area only Echo Mountain 15' OrGMS-47 NE% Echo Mountain 15' 010-92-3 N. of 44O22' Echo Mountain OrGMS-47 Complete Echo Mountain 010-92-3 Complete Echo Mountain W 597 T.14 S., R7E., secs. 5,8,17, 29-31 Echo SE W 1620 Complete Echo SW HA-3 87 NW% Echo SW W 1620 Complete Eddyvllle GP-48 1 Complete, aeromagnetic Eddyvllle 1-867 Complete Eddyville OF 72-352 Complete Eddyville OM-88 Complete Eddyvllle OrB 81 Complete Eddyville WRI 76-90 Complete Eden MF-1536 Wilderness Area only Eden Ridge MF-1536 Wilderness Area only Eden Ridge Valley OrB 80 Coos County portion only Eden Ridge Valley MF-1528 Complete Eden Valley OrB 80 Coos County portion only Eden Valley MF-1528 Complete Egli Rim P 383-B N.% Eight Dollar Mountain GP-197 Complete, aeromagnetic Eight Dollar Mountain MF-1349 Complete Eight Dollar Mountain MF-1528 Complete Eight Dollar Mountain OrB 40 Complete Eight Dollar Mountain OrB 100 Complete Elbow Creek MF-1536 Wilderness Area only Eldorado Pass OrQM-4 Complete Elgin W 1597 S. of 45O35' Elk City GP-48 1 Complete, aeromagnetic Elk City 1-867 Complete Elk City OF 72-352 Complete Elk City OM-88 Complete Elk City OrB 81 Complete Elk City WRI 76-90 Complete Elk Lake 1-1967 E. % Elk Lake MF-1952 Complete Elk Peak OM-204 Complete Elk Peak OrB 80 Coos County portion only Elk Peak WRI 83-40 17 Douglas County portion only Elk Prairie OrGMS-5 1 Complete Elkhorn O~B15 S. of 44O48' Elkhorn Peak HA-242 Complete E. of R37 E. Elkhorn Peak OrGMS-4 1 Complete Elkhorn Peak OrQM-8 Complete Elkton 15' OM-204 Complete Elkton 15' WRI 83-4017 Complete Elkton OM-204 Complete Elkton WRI 83-40 17 Complete Oregon Geologic Map Index 2 1

Quad name Publication Scale Coverage

Ella HA-3 87 Complete Elmira 15' OM-1 10 Complete Elmira 15' W 890 E. % Elmira 15' W 2018 E. % Elsie OM42 Complete Elsie OrB 79 Complete Elsie OrOGI 14 Complete Emerson OrB 91 Wasco County portion only Emigrant Butte 1-1891 Complete Emigrant Butte OF 83-661 Wilderness Area only Emigrant Butte OrSP 15 N. of 43O28' Emigrant Lake GQ-89 Complete Emigrant Lake HA42 1 Complete Emigrant Lake MF-1528 Complete Emigrant Lake OrB 94 Complete Emigrant Lake OrQM-6 Complete Emigrant Lake P 1521 W.% Empire 15' B 945-E Complete Empire 15' GF-73 Complete Empire 15' OrB 80 Complete Empire 15' OrB 87 Complete Empire 15' OrOGI 6 Complete Empire B 945-E Complete Empire GF-73 Complete Empire OrB 80 Complete Empire OrB 87 Complete Empire OrOGI 6 Complete Encina B 879 Complete Encina HA-242 E. portion, secs. 1,12, T.10 S., R.40 E. Encina HA-242 E. portion, secs. 25,36, T. 9 S., R.40 E. Enright 15' OF 94-2 1 Complete Enright 15' OM42 Complete Enright 15' OrB 79 T. 1 N., R.7 W. Enright 15' OrB 79 T.l N., R8 W., secs. 12-13,23-27 Enright 15' OrB 79 T.l N., R8 W., secs. 33-36 Enright 15' OrB 79 T.2 N., R7 W., SKS.21-23, 26-29 Enright 15' OrB 79 T.2 N., R7 W., secs. 32-35 Enright 15' OrB 79 T.3 N., R8 W., secs. 7-11, 14-23 Enright 15' OrB 79 T.3 N., R.9 W.. secs. 13.14, 23-26 Enright 15' OrB 79 T.l S.,R.7 W., secs. 1-12 Enright 15' OrB 79 T.lS.,R.8 W.,secs. 1-5 Enterprise 15' B 1385-E Wilderness Area only Enterprise 15' OrB 12 Tps. l,2 S., R43 E. Enterprise 15' OrB 12 T.3 S., Rs.43,44 E. Enterprise 15' O@M-10 Tps.l,2 S., R.43 E. Enterprise 15' OrQM-10 T.3 S., Rs.43,44 E. Estacada B 1119 Complete Estacada OF 80-1049 Complete Estacada OrB 99 Complete Estacada OrGWR 29 Complete Estacada OrQM-9 Complete Estacada WRI 904196 N. of Eagle Creek Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Euchre Mountain 15' 1-868 Complete Euchre Mountain 15' OF 72-3 50 Complete Euchre Mountain 15' OM-97 Complete Euchre Mountain 15' OrB 81 Complete Euchre Mountain 15' WRI 76-90 Complete Euchre Mountain 1-868 Complete Euchre Mountain OF 72-350 Complete Euchre Mountain OM-97 Complete Euchre Mountain OrB 81 Complete Euchre Mountain WRI 76-90 Complete Eugene 15' OM-1 10 Complete Eugene 15' OrB 84 Linn County portion only Eugene 15' W 2018 Complete Eugene 15' W 890 Complete Eugene East OM-1 10 Complete Eugene East W 890 Complete Eugene East W 2018 Complete Eugene West OM-1 10 Complete Eugene West W 890 Complete Eugene West W 2018 Complete Evans Well OF 82-847 Complete Fairdale 15' OF 94-21 Complete Fairdale 15' OM42 Complete Fairdale OF 94-21 Complete Fairdale OM42 Complete Fairview Peak 15' B 893 T.22 S., R1E., secs. 25-26,35-36 Fairview Peak 15' B 893 T.22 S., R.2 E., secs. 31-32 Fairview Peak 15' B 893 T.23 S., R1 E., secs. 1-3, 10-15 Fairview Peak 15' B 893 T.23 S., R1E., secs. 22-24 Fairview Peak 15' B 893 T.23 S., R.2 E., secs. 5-8, 17-20 Fairview Peak B 893 NE% Fall Mountain GQ-548 Complete Fall Mountain 1-1021 T.14 S., R31 E., sec. 33 Fall Mountain 1-1021 T.15 S., R30 E., secs. 13-14,21-24 Fall Mountain 1-1021 T.15 S., R31 E., secs. 4,9, 16-21 Fall Mountain MF-50 Complete Falls City OF 80-678 Complete Falls City OrB 35 Complete Falls City OrGWR 28 Complete Fandango Canyon P 383-B Complete Fanno Ridge OrB 35 Complete Farmers Butte OrB 84 T.14 S., R.2 E., secs. 1-12, 15-22 Farmers Butte OrB 84 T.14 S., R2 E., secs. 27-34 Father Mountain B 1339 Complete Father Mountain GF-89 Complete Father Mountain OrB 90 Complete Father Mountain OrB 93 Complete Fields B 931-5 E. of 118°40' Fields B 995-B E. % Findley Buttes OrGMS-6 Complete Fingerboard Saddle OrGMS-6 Complete Finley Butte OF 82-847 Complete 2/16/95 Oregon Geologic Map Index 23

Quad name Publication Scale Coverage

Fire Lake P 383-B N. of drainage divide Fish Creek Desert 1-1891 E.213 Fish Lake MF- 1876 Wilderness Area only Fish Mountain 1-1891 NE% Fishhole Mountain 15' MF-1367 Wilderness Area only Five Hundred Flat MF-82 Complete Five Rivers 1-866 Complete Five Rivers OF 72-35 1 Complete Five Rivers OM-88 Complete Five Rivers OrB 81 Lincoln County portion only Five Rivers OrB 85 Lane County portion W. of 123O50' Five Rivers WRI 76-90 N. of Lincoln County line Fivemile Butte 1-556 Complete Fivemile Creek OM- 186 Complete Fivemile Creek OrB 87 Douglas County portion only Fivemile Creek OrOGI 6 Complete Fivemile Creek WRI 83-40 17 Douglas County portion only Flag Prairie 15' OrQM-4 Complete Flag Prairie orQM-4 Complete Flagstaff Butte W 1597 N. of 45O05' Flagtail Mountain 1-1021 N. of 44O10' Flagtail Mountain MF-82 Complete Flat Mountain OM-150 Complete Flat Mountain OrB 98 Complete Floras Lake GF-89 Complete Floras Lake OrB 90 Complete Floras Lake OrB 93 Complete Florence OM- 186 Complete Florence OrB 85 Complete Florence OrOGI 6 Complete Fly Creek 1-5 5 5 Complete Fly Creek WRI 76-26 Warm Springs Indian Reservation only Fly Valley W 1597 Complete Foley Butte 1-872 Complete Foley Peak OF 94-21 Complete Foley Peak OM42 Complete Foley Peak OrB 74 Complete Folly Farm MF-2079 S. % Foreman Point 1-556 Complete Foreman Point WRI 76-26 Warm Springs Indian Reservation only Forest Grove 15' OM42 Complete Forest Grove 15' OrB 60 S.% Forest Grove 15' W 1697 Complete Forest Grove 15' W 890 SEM Forest Grove OM42 Complete Forest Grove OrB 60 Complete Forest Grove W 1697 Complete Forest Grove W 890 Complete Forked Horn Butte OrQM-1 Complete Fossil Lake OF 80-846 E. of 4-WD Road, S. of T.26 S. Fossil Lake P 383-B Complete Fossil North 1-872 Complete Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Fossil South 1-872 Complete Fort Butte 15' WRI 76-26 Warm Springs Indian Reservation only Fort Butte WRI 76-26 Complete Fort Rock P 383-B Complete Fourth of July Creek MF-1240-A Wilderness Area only Fourth of July Creek OrB 90 T.41 S., Rs.11,12 W. Fourth of July Creek OrB 93 Complete Fox OF 67-213 Complete Fox Hollow OM- 110 Complete Franklin Hill W 1620 Complete French Gulch B 879 Complete French Mountain MF-1952 Complete French Mountain OrGMS-48 Complete Frenchglen W 841 E. of 118'54' Friend 1-556 Complete Funny Butte OrB 58 Complete Fuzztail Butte OF 82-847 Complete Gales Creek OM42 Complete Gales Creek OrB 60 Complete Gales Creek W 1697 Complete Galice 15' B 830 T.35 S., R.9 W., secs. 1-3, 10-15 Galice 15' GQ-25 Complete Galice 15' MF-1528 Complete Galice 15' OrB 100, pl. 1 Josephine County portion Galice 15' OrB 100, pl3 Josephine County portion of T.33 S., R7 W. Galice 0-25 Complete Galice MF-1528 Complete Galice OrB 100 Complete Garden Valley GF-49 Complete Garden Valley W 74-32 Complete Garibaldl OF 94-2 1 Complete Garibaldi OM42 Complete Garibaldi OrB 74 Complete Garwood Butte 15' 1-1891 E.% Garwood Butte 1-1891 Complete Gassett BlufE W 1597 Complete Gaston OM42 Complete Gaston OrB 60 Complete Gateway 1-555 Complete Gateway 1-872 SE M Gateway OrGMS-43 Complete Gateway WFU 76-26 Warm Springs Indian Reservation only Gearhart OM42 Complete Gear hart OrB 74 Complete Gearhart OIOGI 14 Complete Gearhart W 1899-A Complete Gearhart Mountain MF-1367 Wilderness Area only Gerow Butte 1-543 Complete Gerow Butte OrQM-7 Complete GeqMountain B 1744-A N. of 43'54', E. of 120'09' Gervais W 890 Complete Gervais W 1833 Complete Oregon Geologic Map Index 25

Ouad name Publication Scale Coverage

Gibbon W 1620 Complete Gibbon WRI 77-3 Umatilla Indian Reservation only Gladstone B 1119 Complete Gladstone OF 80-1049 S. of 45O25' except Oatfield Road area Gladstone OrB 99 Clackamas County portion only Gladstone OrGWR 29 S. of 45O25' except Oattield Road area Gladstone OQM-9 Complete Gladstone W 1793 Complete Gladstone W 890 Complete Gladstone WRI 90-4196 N. of Clackamas R Glasgow Butte B 830 T.8 S., R43 E., secs. 14-18 Glasgow Butte OrB 3 N. of Powder R Glasgow Butte OrGMS-1 Complete Glass Hill OrSP 6 Complete Glass Hill W 1597 Complete Glenbrook OM-150 Complete Glenbrook OrB 98 Benton County portion only Glendale 15' . GF-218 Complete Glendale 15' HA-480 S. of 42O36'30" Glendale 15' MF-1528 Complete Glendale 15' OrB 100 Josephine County portion only Glendale 15' OrB 100 Josephine County, E. of 1-5 Glendale 15' WRI79-8 Douglas County portion only Glendale GF-218 Complete Glendale MF-1528 Complete Glendale OrB 100 Josephine County portion only Glendale WlU 79-8 Douglas County portion only Glide 15' GF-49 Complete Glide 15' WlU 74-32 NW% Glide GF-49 Complete Gobblers Knob OF 94-2 1 Complete Gobblers Knob OM32 Complete Gold Beach 15' B 1339 Complete Gold Beach 15' OrB 69 T.37 S., R14 W., SXS. 29-33 Gold Beach 15' OrB 69 T.37 S., R15 W., secs. 25,36 Gold Beach 15' OrB 69 T.37 S., R14 W., secs. 3-10, 14-23 Gold Beach 15' OrB 69 T.37 S., R14 W., SKS. 26-30 Gold Beach 15' OrB 90 Complete Gold Beach 15' OrB 93 Complete Gold Beach B 1339 Complete Gold Beach OrB 90 Complete Gold Beach OrB 93 Complete Gold Hill 15' MF-1528 Complete Gold Hill 15' OF 81-1076 S. of 42O25', E. of 123O10' Gold Hill 15' OrB 94 N. % Gold Hill 15' OrQM-3 Complete Gold Hill MF-1528 Complete Gold Hill OF 81-1076 S. of 42'25' Gold Hill OrB 94 Complete Gold Hill OrQM-3 Complete Golden GF-2 18 Complete Golden MF-1528 Complete Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Golden OrB 100 Josephine County portion only Golden OrB 100 Josephine County, E. of Interstate 5 Golden W 79-8 Douglas County portion only Golden Falls O~B80 Complete Golgotha Butte HA-3 87 Oregon portion only Goodwin Peak 15' OM-186 Complete Goodwin Peak 15' OrB 87 S.% Goodwin Peak 15' WRI 83-4017 Douglas County portion only Goodwin Peak OM- 186 Complete Goodwin Peak WRI 83-4017 Douglas County portion only Goose Pasture OM-186 Complete Goose Pasture OrB 85 Complete Goose Pasture OrOGI 6 Complete Goose Pasture W 1539-K T. 18 S., R. 12 W. Government Camp MF-1379-A Wilderness Area only Government Camp OF 80-1049 N. of 45O17'30" Government Camp OrB 62 T.2 S., R8 E. Government Camp OrB 62 T.3 S., R8 E, secs. 1-3, 10-15 Government Camp OrB 62 T.3 S., R8E, secs. 22-24 Government Camp OrGWR 29 N. of 45O17'30" Grand Ronde 15' OM-129 Complete Grand Ronde 15' OrB 79 Tillamook County portion W. of 123O34' Grand Ronde 15' OrGMS-24 SEX Grand Ronde OM-129 Complete Grand Ronde OrB 79 Complete Grand Ronde OrGMS-24 Complete Granite MF-1581-C North Fork John Day R area Granite OffiMS-25 Complete Granite OrQM-8 Complete Granite Meadows W 1620 Complete Grants Pass 15' GP- 197 W. of 123'25', aeromagnetic Grants Pass 15' HA-480 N. of 42O18'11" Grants Pass 15' MF-1528 Complete Grants Pass 15' OrB 100 Complete Grants Pass 15' OrQM-3 Complete Grants Pass HA-480 Complete Grants Pass MF-1528 Complete Grants Pass OrB 100 Complete Grants Pass OrQM-3 Complete Grass Mounmn OM-162 Complete Grass Mountain OrB 81 Lincoln County portion only Grasshopper Mountain 1-1891 Complete Grasshopper Mountain MF-1952 NE%NE% Grassy Mountain OrGMS-2 Complete Grassy Mountain OrGMS-57 Complete Grassy Mountain OrGMS-77 Complete Grave Point OF 78-805 Hells Canyon area only Grave Point OrGMS-6 Oregon portion only Graveyard Point OffiMS-2 Complete Graveyard Point OffiMS-54 Complete Graveyard Point OffiMS-77 Complete Gray Butte 1-1142 Complete 'Oregon Geologic Map Index 27

Ouad name Publication Scale Coverage

Gray Butte OrQM-1 Complete Grayback Mountain MF-1528 Complete Grayback Mountain OrB 100 Complete Grayback Mountain OrQM-3 Complete Graylock Butte 1-1021 N. of 44O 10' Graylock Butte MF-82 Complete Green Mountain OM42 Complete Green Mountain OrB 74 Complete Green Mountain OrOGI 14 Complete Green Peter OrB 84 Complete Greenberry OM-150 Complete Greenberry OrB 98 Complete Greenberry OrB 98 Complete Greenbeny W 2040 S. of 44O29' Greenbeny W 890 Complete Greenhorn OrGMS-28 Complete Greenhorn OrQM-8 Complete Greenleaf OM- 186 Complete Grizzly Peak GQ-89 Complete Grizzly Peak MF-1528 Complete Grizzly Peak OrQM-6 Complete Groan Canyon MF-2079 Complete Groundhog Mountain 1-1891 Complete Groundhog Mountain OrSP 15 E. of 122O18' Guadalupe Meadows MF- 1926 Owyhee Canyon area Gumboot Butte OrGMS-6 Complete Gunter OM- 186 Complete Gunter WRI 83-4017 Douglas County portion only Gurdane W 1620 Complete Haas Hollow OrGMS-6 Complete Haines B 879 Complete Haines HA-242 Complete Halfway 15' MF-16 12-A Roadless Area only Halfway 15' OrB 3 Complete Halfway MF-1612-A Roadless Area only Halfway OrB 3 Complete Halsey 15' OM-150 W. of Willamette R Halsey 15' OrB 84 Linn County portion only Halsey 15' OrB 98 Benton County portion only Halsey 15' W 890 Complete Halsey 15' W 2040 S. of 44O29' Halsey OrB 84 Complete Halsey W 890 Complete Halsey 2040 S. of 44O29' Hamaker Butte 1-1891 Complete Hamilton OF 67-212 Complete Hamlet OM42 Complete Hamlet OrB 79 Complete Hamlet OrOGI 14 Complete Happy Valley W 841 Complete Hardin Ranch B 1744-A N. of 43O57', W. of 119O58' Harl Butte 15' OrGMS-6 Complete Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale

Harl Butte OrGMS-6 Complete Harlan GP-48 1 Complete, aeromagnetic Harlan OM-162 Complete Harlan OrB 81 Complete Harness Mountain B 850 Complete, except for extreme SE Harness Mountain B 1122-D Complete Harness Mountain WRI 76-105 S. of 43O36', E. of 123O06' Harney 15' W 841 Complete Harney W 841 Complete Harper 15' B 875 T.18 S., R.41 E., secs. 14-17 Harper 15' B 875 T.18 S., R41 E., SXS.20-36 Harper 15' B 875 T. 18 S., R.42 E., secs. 17-20 Harper 15' B 875 T.18 S., R.42 E., secs. 29-32 Harper 15' B 875 T.19 S., R41 E. Harper 15' B 875 T.19 S., R.42 E., secs. 15-23 Harper 15' B 875 T. 19 S., R.42 E., secs. 26-35 Harper 15' B 875 T.20 S., R42 E., secs. 3-9 Harper 15' OrGMS-77 Complete Warper B 875 T. 19 S., R42 E., secs. 3 1-35 Harper B 875 T.20 S., R42 E., SXS. 3-9 Harper OrGMS-69 Complete Harper OrGMS-77 Complete Harrisburg OM-150 W. of Willamette R Hanisburg OrB 84 Lim County portion only Hanisburg OrB 98 Benton County portion only Harrisburg W 890 Complete Harrisburg W 2040 Complete Harter Mountain 010-92-3 Complete Hastings Peak 1-872 Complete Hat Point OrGMS-6 Complete Hat Rock HA-3 87 Oregon portion only Hat Rock W 1620 Oregon portion only He Devil 15' OF 78-805 Snake R. to Summit Ridge He Devil 15' OrGMS-6 Oregon portion only Hebo 15' OM-97 Complete Hebo 15' OrB 74 Tillamook County portion only Hebo 15' WRI 76-90 Lincoln County portion only Hebo OM-97 Complete Hebo OrB 74 Complete Heceta Head 15' OM-186 Complete Heceta Head 15' OrB 85 Complete Heceta Head 15' W 1529-K T.17 S., R11 W., secs. 7,18,19,30,36 Heceta Head 15' W 1529-K T.17 S., R12 W. Heceta Head OM- 186 Complete Heceta Head OrB 85 Complete Hehe Butte 1-555 Complete Hehe Butte WRI 76-26 Complete Helix W 1620 Complete Hellion Rapids 1-866 Complete Hellion Rapids OF 72-35 1 Complete Hellion Rapids OM-88 Complete Hellion Rapids OrB 81 Complete 2/16/95 Oregon Geologic Map Index 29

Quad name Publication Scale Coverage

Hellion Rapids WFU 76-90 Complete Henkle Butte OrQM-1 Complete Henley Basin OrGMS-13 Oregon portion only Henxy Gulch OffiWR 34 Lowland areas only Heppner Junction HA-3 87 T.3 N., R22 E., secs. 1-2, 11-12 Heppner Junction HA-387 T.4 N., R22 E., SKS. 25-26 Heppner Junction HA-387 T.4 N., R22 E., secs. 35-36 Hereford OrQM-4 Complete Hennan Creek OM-186 Complete Hennan Creek OrB 85 Complete Hermiston HA-387 Complete Hermiston W 1620 Complete Hickman Butte MF-1379-A Wilderness Area only Hickman Butte OF 80-1049 S. of 45O24'15" Hickman Butte OrB 82 N. of 4S025' Hickman Butte OrGWR 29 S. of 45O24'15" High Point OM-1 10 Complete Hilgard OrSP 6 Complete Hilgard W 1597 Complete Hillsboro 15' B 1119 Oregon portion only Hillsboro 15' OM42 Complete Hillsboro 15' OrB 60 S.% Hillsboro 15' W 890 S.% Hillsboro 15' W 1697 Complete except for NE% Hillsboro 15' WRI 90-4196 NE of Tualatin Mountains Hillsboro B 1119 Complete Hillsboro OM42 Complete Hillsboro OrB 60 Complete Hillsboro W 1697 Complete Hillsboro W 890 Complete Hinkle Creek GF-49 Complete Hobson Horn 1-1735 Complete Hobson Horn MF-1528 Complete Hobson Horn OrB 93 Curry County portion only Hobson Horn OrB 100 Josephine County portion only Hogback Butte P 383-B Complete Holdman W 1620 Complete Holdman SE W 1620 Complete Hole-in-the-Grounc1 P 383-B Complete Holland GP-197 Complete, aeromagnetic Holland MF-1528 Complete Holland OrB 40 Complete Holland OrB 100 Complete Holland Point B 893 SW%SW% Holmes Canyon W 841 E. of 119O20' Homestead 15' MF-16 12-A Roadless Area only Homestead 15' OF 78-805 Wallowa County portion of Hells Cany Homestead 15' OrGMS-6 Oregon portion only Homestead OrGMS-6 Oregon portion only Hood River 15' OrB 91 T.l N., R9 E., secs. 1-2, 11-14 Hood River 15' OrB 91 T.l N., R9E., secs. 23-25 Hood River 15' OrB 91 T.l N., R 9.E., secs. 35-36 30 Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Hood River 15' OrB 91 T.l N., R10 E., SXS. 1-12, 14-22 Hood River 15' OrB 91 T. 1N., R 10 E., secs. 27-34 Hood River 15' OrB 91 T.2 N., R9E., S~S.1-27, 35-36 Hood River 15' OrGWR 10 Valley areas only Hood River OrB 91 Complete Hood River OrGWR 10 Valley floor, Hood R Hoodlum Canyon W 1620 Complete Hooker Creek OrGMS-78 Complete Hooker Creek 010-92-8 Complete Horn Butte HA-387 T.3 N., R22 E., SWS.10-15,22-27 Horn Butte HA-3 87 T.3 N., R22 E., SXS. 34-36 Horse Butte B 1744-B S. of 44O03', W. of 120°56' Horse Heaven Creek B 969 NE% Horse Heaven Creek 1-872 Complete Horse Mountain OF 80-846 T.27 S., R.21 E., secs. 7-8 Horse Ridge B 1744-B N. of 43'56', E. of 121°06' Horse Ridge OF 82-847 Complete Horse Sign Butte B 1339 Complete Horse Sign Butte MF-1240-A Wilderness Area only Horse Sign Butte OrB 93 Curry County portion only Horton OM-1 10 Complete House Butte MF-1237 T.20 S., R.32% E., secs. 23-26, 36 House Butte MF-1237 T.20 S., R33 E., secs. 29-32 House Butte MF-1237 T.21 S., R33 E., secs. 5-8 Houston Lake W 1619-P Prineville valley only Huckleberry Mountain 1-1891 Complete Hunter Mountain OrQM-4 Complete Huntington 15' OrGMS- 13 Complete Huntington OrGMS-13 Complete Hurley Flat OrGMS-77 Complete Huron W 1597 S.% Huron W 1620 Complete Huston Lake W 1619-P Prineville valley only Hyatt Reservoir 15' MF-1528 Complete Hyatt Reservoir MF-1528 Complete Idanha OrB 15 N. of 44O40' Idanha OrGMS-46 Complete Illahe OrB 80 Coos County portion only Illahe OrB 90 T.34 S., R.10 W.: secs. 1-2, 11-14 Illahe OrB 90 T.34 S., R.10 W., secs. 23-24 Illahe OrB 90 T.34 S., R.ll W., secs. 3-10, 15-22 Illahe OrB 93 Curry County portion only Imbler W 1597 Complete Imnaha 15' OrGMS-6 Complete Irnnaha 0r~~s-6 Complete Irnnaha Creek MF-1507-A Roadless Area only Imnaha Creek MF-1528 Complete Indian Butte OF 82-847 Complete Indian Fort MF-1926 Owyhee Canyon area Indian Head OrB 84 Complete Indian Head W 890 Complete Indian Head W 2040 Complete 2/16/95 Oregon Geolpgic Miip Index 3 1

Quad name Publication Scale Coverage

Ione North HA-387 125k Complete Irish Lake MF-2256 24k Complete Irish Mountain MF-1952 62k N.'h Ironside 15' W 1619-M 125k Cow Valley only Irrigon HA-387 125k Oregon portion only Irrigon W 1620 125k Oregon portion only Isham Creek OF 67-214 62k Complete Ivers Peak 15' OrB 80 62k Coos County portion only Ivers Peak OrB 80 62k Coos County portion only Izee 15' 1-1021 62k N. of T. 16 S. Izee 15' 1-1021 62k T.16 S., R27 E., SKS. 1-5,8-17 Izee 15' 1-1021 62k T.16 S., R27 E., SKS. 20-26 Izee 15' 1-1021 62k T.16 S., R28 E., secs. 1-12 Izee 15' I- 1021 62k T.16 S., R.29 E., secs. 4-9, 16-19 Izee 15' MF-82 62k Complete Izee 15' OrB 58 42k T.17 S., Rs.27,28,29 E. Izee 15' OrB 58 42k T.18 S., R28 E., SKS.2-9, 17-18 Izee 15' OrB 58 42k T. 18 S., R27 E. Izee ME-82 62k Complete Izee OrB 58 42k Complete Jackass Butte W 841 125k E. of 118O54' Jacks Place P 383-B 62k Complete Jaynes Ridge OrGMS-6 125k Complete Jennies Peak B 1743-C 62k NW% Jennies Peak 1-872 125k Complete Jim Creek Butte OF 78-805 48k Complete Jim Creek Butte OrGMS-6 125k Oregon portion only Jim White Ridge B 1385-E 62k Wilderness Area only Jimtown OrB 3 96k Complete John Day 15' B 922 62k T. 14 S., Rs.32,33 E. John Day 15' MF-5 1 62k Complete John Day MF-5 1 62k Complete Johnny Cake Mountain 0-541 62k Complete Johnny Creek NW MF-2079 50k E. % Johnny Creek Spring MF-2079 50k Complete except extreme NE comer Johnny Creek SW MF-2079 50k E. % Johnson Saddle OF 67-213 62k Complete Jonesboro B 1741-E 48k T.20 S.,R39E., S.%sec. 36 Jonesboro B 1741-E 18k T.21 S.. R.39 E. , secs. 1-3, 11,12 Jonesboro OrGMS-66 24k Complete Jonesboro OrGMS-77 look Complete Jordan OrB 84 62k Complete Jordan Craters North B 1741-G 70k Nw% Jordan Craters North OrGMS-78 look Complete Jordan Craters South OrGMS-78 look Complete Jordan Craters South 010-92-9 24k Complete Jordan Creek OF 94-21 62k Complete Jordan Creek OrB 79 62k Complete Jordan Creek OM-42 125k Complete Joseph 15' OrB 12 96k S. of 45O20' Joseph 15' OrQM-10 125k S. of 45O20' Joseph OrB 12 96k S. of 45O20' Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Joseph OrQM- 10 125k S. of 45O20' Josephine Mountain B 1546 125k S. of 42O12' Josephine Mountain GP-97 96k Complete, aeromagnetic Josephine Mountain MF-1240-A 62k Wilderness Area only Josephine Mountain MF-1528 125k Complete Josephine Mountain OrB 40 96k Complete Josephine Mountain OrB 52 24k T.38 S., R9 W., secs. 19,30 Josephine Mountain OrB 52 24k T.38 S., RlO W., secs. 25,35,36 Josephine Mountain OrB 52 24k T.39 S., R9W., secs. 19,30 Josephine Mountain OrB 88 48k W. of 123O48' Josephine Mountain OrB 93 125k Curry County portion only Josephine Mountain OrB 100 125k Josephine County portion only Junction City OM- 110 62k Complete Junction City W 890 125k Complete Junction City W 2018 62k Complete Juniper HA-387 125k Oregon portion only Juniper W 1620 125k Oregon portion only Juniper Canyon W 1620 125k Oregon portion only Juniper Mountain W 1619-M 125k Cow valley only Kalama 15' OM-42 125k Oregon portion only Kalama OM42 125k Oregon portion only Kamela SE W 1597 62k Complete Kane Spring Gulch OrGMS-2 125k Complete Kane Spring Gulch OrGMS-77 look Complete Kane Spring Gulch 010-90-3 24k Complete Kaskela 1-555 125k Complete Kaskela WRI 76-26 62k Warm Springs Indian Reservation only Keating B 830 3 1k T.8 S., R.42 E., secs. 13,14,15 Keating B 879 125k Complete Keating HA-242 96k T.8 S., R.12 E., secs. 13-36 Keating HA-242 96k T.9 S., R.42 E., secs. 5-8, 17-18 Keating NW B 879 125k Complete Keating NW HA-242 96k S. of Baker County line Keating NW 010-77-lb 24k Complete Keeney Ridge OrGMS-77 look Complete Keeney Ridge 010-9 1-3 24k Complete Keilogg OM-204 62k Complete Kellogg WRI 83-4017 look Complete Kelsay Butte GQ-1654 62k Complete Kelsay Butte MF-1581-C 18k North Fork John Day R. area Kelsey Butte OF 82-847 62k Complete Kelsey Peak 1-1735 62k Complete Kelsey Peak MF-1528 125k Complete Kelsey Peak OrB 93 125k Curry County portion only Kelsey Peak OrB 100 125k Josephne County portion only Kelso OM-42 125k Oregon portion only Kenyon Mountain OrB 80 62k Coos County portion only Kenyon Mountain OrGMS-83 24k Complete Kerby Peak GP- 197 96k W. of 123'25, aeromagnetic Kerby Peak MF-1528 125k Complete Kerby Peak OrB 100 125k Complete Kerby Peak OrQM-3 125k Complete Oregon Geologic Map Index 33

Quad name Publication Scale Coverage

Kernan Point 15' OF 78-805 Snake R to Summit Ridge Kernan Point 15' OrGMS-6 Oregon portion only Ketchum Reservoir OrB 91 Complete Ketchum Reservoir OrGWR 33 T.2 N., R11 E., secs. 25-26, 35-36 Keyes Mountain OrB 72 Complete Keys Creek OrQM-7 Complete Kilchis River OF 94-2 1 Complete Kilchis River OM42 Complete Kilchis River OrB 74 Complete King Mountain GF-2 18 Complete King Mountain ME-848 Complete King Mountain MF-1528 Complete King Mountain MF-2171 SE% Kings Valley GP-48 1 Complete, aeromagnetic Kings Valley OF 80-678 N. of 44O39' Kings Valley OM- 150 Complete Kings Valley OrB 98 Benton County portion only Kings Valley OrGWR 28 N. of 44O39' Kinney Lake OrB 12 S. of 45O20' Kinney Lake OrQM-10 S. of 45O20' Kinzua 15' 1-872 Complete Kinzua 1-872 Complete Kirkwood Creek OF 78-805 Hells Canyon area only Kirkwood Creek OrGMS-6 Oregon portion only Knappa OM42 Oregon portion only Knappa OrB 79 E. of 123O36' Knappa OrOGI 14 Complete Knox Mountain OrQM-4 Complete Krag Peak OrB 3 Baker County portion and E. of Eagle Creek Krag Peak OrB 12 Complete Krag Peak OrQM- 10 Complete Krumbo Reservoir MF-2267 Complete Krumbo Reservoir W 841 Complete except SEL/s Krumbo Ridge W 841 N. of 42O55' La Grande OrSP 6 Complete La Grande W 1597 Complete La Grande SE OrSP 6 Complete La Grande SE W 1597 Complete La Grande Reservoir W 1597 Complete Lacomb OrB 84 T.ll S., R.l E. Lacomb OrB 84 T.12 S., R.l E., secs. 3-9, 16-21 Ladycomb Peak B 931-J E. of 11S040' Ladycomb Peak B 995-B T.39 S., Rs.34,35 E. Lake Geneva I- 1967 S.% Lake Geneva 'OrSP 2 Complete Lake of the Woods 15' MF-1507-A Wilderness Area only Lake of the Woods 15' MF-1528 Complete Lake of the Woods North MF-1528 Complete Lake of the Woods South MF-1507-A Wilderness Area only Lake of the Woods South MF-1528 Complete Lake Oswego B 1119 Complete Lake Oswego Oh4-42 W. of Willamette R. Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Lake Oswego OrB 99 Clackamas County portion only Lake Oswego OrGMS-59 Complete Lake Oswego OrQM-9 Complete Lake Oswego W 890 Complete Lake Oswego W 1697 W. of Willamette R Lake Oswego W 1793 E. of Willamette R Lake Oswego WRI 90-4196 Portland basin area only Lakecreek 15' GQ-89 Complete Lakecreek 15' MF-1528 Complete Lakecreek 15' OrB 94 T.35 S., R1E., secs. 27-34 Lakecreek 15' OrB 94 T.36 S., R1E., =s. 3-10, 15-22 Lakecreek 15' OrB 94 T.36 S., R1 E., SKS. 27-34 Lakecreek 15' OrB 94 T.37 S., R1E., secs. 3-6 Lakecreek 15' OrQM-6 Complete Lakecreek GQ-89 Complete Lakecreek MF-1528 Complete Lakecreek OrQM-6 Complete Lakeside OF 80-444 T.22 S., R12 W., S~S.31-33 Lakeside OF 80-444 ~.22S., R13 W., secs. 35-36 Lakeside OF 80-444 T.23 S., R12 W., =s. 4-6 Lakeside OF 80-444 T.23 S., R13 W., SKS. 1-2 Lakeside OM-204 Complete Lakeside OrB 80 Coos County portion only Lakeside OrB 87 Complete Lakeside OrOGI 6 Complete Lakeside WRI 83-4017 Douglas County portion only Lakeview Airport OF 80-532 Complete Lakeview NW OF 80-532 Complete Lambert Rocks MF-2 167 Owyhee Canyon area Lambert Rocks OrGMS-78 Complete Landing Creek MF-320 Complete Lane Lake P 383-B Complete Lane Mountain GF-49 Complete Langlois 15' GF-89 Complete Langlgis 15' OrB 80 Coos County portion only Langlois 15' OrB 87 Coos County portion only Langlois 15' OrB 90 Curry County portion only Langlois 15' OrB 93 Curry County portion only Langlois 15' 010-82-3 Complete Langlois GF-89 Complete Langlois OrB 80 Coos County portion only Langlois OrB 87 Complete Langlois OrB 90 Curry County portion only Langlois OrB 93 Curry County portion only Langlois GO-82-3 Complete Langrell OrB 3 Complete Laurel Mountain OrB 35 Complete Laurelwood OM42 Complete Laurelwood OrB 60 Complete Lava Butte OF 82-847 Complete Lava Cast Forest OF 82-847 Complete Lawen 15' W 841 Complete 2/16/95 Oregon Geologic Map Index 35

Quad name Publication Scale Coverage

Lawen W 841 Complete Lawhead Creek OrB 15 N. of 44O42' Lawhead Creek OrB 84 N. of 44O44' Lawrence Creek OffiMS-3 Complete Lawson Mountain 1-872 Complete Lebanon 15' GP-212 Complete, aeromagnetic Lebanon 15' OrB 15 N. of 44O43' Lebanon 15' OrB 84 Complete Lebanon 15' OrQMd Complete Lebanon 15' W 890 Complete Lebanon GP-212 Complete, aeromagnetic Lebanon OrB 84 Complete Lebanon OrQMd Complete Lebanon W 890 Complete Lee Thomas Crossing MF-1367 Wilderness Area only Lefevre Prairie 1-872 Complete Lemolo Lake 1-1891 Complete Lena W 1620 Complete Letz Creek OM-1 10 Complete Letz Creek WRI 76-105 S. of 43O47' Lewis Creek MF-82 Complete Lewis Creek OrB 58 T. 17 S., Rs.28,29 E. Lewisburg GP-48 1 Complete, aeromagnetic Lewisburg OF 80-678 W. of Willamette R, N. of 44O39' Lewisburg OM- 150 W. of Willamette R Lewisburg OrB 37 Complete Lewisburg OrB 84 Complete Lewisburg OrB 98 Benton County portion only Lewisburg OrB 98 Benton County portion only Lewisburg OrGWR 28 W. of Willamette R., N. of 44'39' Lewisburg W 890 Complete Lewisburg W 2032 S. of 44O41' Lick Creek B 1385-E Wilderness Area only Lick Creek OrB 12 Complete Lick Creek OrQM- 10 Complete Liggett Table B 1744-A S. of 44O02' Liggett Table OrQM-7 Complete Limber Jim Creek OrGMS-82 Complete Limber Jim Creek W 1597 Complete Lime OrGMS-13 Complete Lincoln City 1-868 Complete Lincoln City OF 72-350 Complete Lincoln City OM-97 Complete Lincoln City OrB 81 Complete Lincoln City WRI 76-90 Complete Linnton B 1119 Complete Linnton OM-42 W. of Willamette R Linnton OrB 60 Complete Linnton W 890 Complete Linnton W 1697 Complete Linnton WRI 90-4196 NE of Tualatin Mountains Linton Lake MF-1952 Complete excepffor NW comer Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Linton Lake OF 83-662 62k Wilderness Area only Lionshead B 1230-D 62k Wilderness Area only Lionshead WRI 76-26 62k WmSprings Indian Reservation only Little Baldy Mountain OIQM-4 125k Complete Little Beaver Creek W 1597 62k Complete Little Black Canyon OrGMS-77 look Complete Little Catherine Creek W 1597 62k Complete Little Chinquapin Mtn. MF-1528 125k Complete Little Lookout Mountain OrGMS-3 62k Complete Little Squaw Back 010-92-3 62k Complete Little Valley OrGMS-72 24k Complete Little Valley OrGMS-77 look Complete Little Whitehorse Creek B 1742-B look Complete except NW% Little Whitehorse Creek MF-1472 24k Complete Little Whitehorse Creek OF 81-1092 62k NW% Live Oak Mountain MF-1528 125k Complete Loco Lake MF-2121 48k Complete Locust Grove OrB 91 62k N. of 4S035' Logdell 15' 1-1021 62k N. of 44'10' Logdell 15' MF-82 62k Complete Logdell 1-1021 62k N. of 44'10' Logdell MF-82 62k Complete Lone Rock 1-872 125k Complete Long Creek 15' OF 67-213 62k Complete Long Creek OF 67-213 62k Complete Lookout Mountain 15' 1-543 62k Complete Lookout Mountain 15' OrQM-7 96k Complete Lookout Mountain 1-543 62k Complete Lookout Mountain OrQM-7 96k Complete Loon Lake OM-204 62k Complete Loon Lake WRI 834017 look Douglas County portion only Lorane OM-1 10 62k Complete Lorane WRI 76-105 62k Douglas County portion only Lord Flat OF 78-805 48k Snake R to Summit Ridge Lord Flat OffiMS-6 125k Oregon portion only Lost Basin B 879 125k Complete Lostine B 1385-E 62k Wilderness Area only Lostine OrB 12 96k Complete Lostine OrQM- 10 125k Complete Lyle OrB 91 62k Oregon portion only Lyle OrGWR 33 24k Oregon, W. of Rowena Creek Lyons 15' OrB 15 125k S. of 44'50' Lyons 15' OrB 84 62k Lim County portion only Lyons 15' OrGMS-50 24k NW'A Lyons 15' OrGMS-5 1 25k NE% Lyons 15' W 1997 48k W. % Lyons OrB 15 125k S. of 44'50' Mack Point OrB 69 62k Complete Mack Point OrB 90 62k Complete Mack Point OrB 93 125k Complete Macken Canyon 1-872 125k SE% Madras East 1-555 125k Complete Oregon Geologic Map Index 37

Quad name Publication Scale Coverage

MadrasEast 1-872 NW% MadrasEast OrGMS-45 Complete Madras West 1-555 Complete Madras West OrGMS-45 Complete Madras West WRI 76-26 Warm Springs Indian Reservation only Magpie Peak B 879 Complete Magpie Peak HA-242 All but secs. 35-36, T.6 S., R40 E. Mahogany Gap . OrGMS-65 Complete Mahogany Gap OrGMS-78 Complete Mahon Creek W 841 Complete Maklaks Crater MF-1528 Complete Malheur Butte OrGWR 34 Complete Malheur Lake East W 841 Complete Malheur Lake West W 841 Complete Mapleton 15' OM- 186 Complete Mapleton 15' OrB 85 W. of 123O50' Mapleton OM- 186 Complete Mapleton OrB 85 W. of 123O50' Marcola 15' OrB 84 Linn County portion only Marcola 15' W 2018 W.% Mares Egg Spring MF-1528 Complete Mares Egg Spring GQ-1653 Complete Marial 15' MF-1381-A Wild Rogue Wilderness Area only Marial 15' MF-1528 Complete Marial 15' MF-1735 Complete Marial 15' OrB 80 Coos County portion only Marial 15' OrB 93 Curry County portion only Marial 15' OrB 100 Josephine County portion only Marial MF-1528 Complete Marial MF-1735 Complete Marial OrB 80 Coos County portion only Marial OrB 93 Curry County portion only Manon Forks B 1230-D Wilderness Area only Marion Forks OrGMS 47 Complete Marion Lake B 1230-D Wilderness Area only Marley Creek W 1597 Complete Marshland OM-42 Complete Marshland OroGI 5 Complete Marys Peak 15' GP-48 1 Complete. aeromagnetic Marys Peak 15' OM-162 Complete Marys Peak 15' OrB 81 Lincoln County portion only Marys Peak GP-48 1 Complete, aeromagnetic Marys Peak OM-162 Complete Masiker Mountain 1-872 Complete Massacre Mountain - 1-872 Complete Matlock Prairie 010-86-5 Complete Maupin 1-556 Complete Maupin Butte B 1744-A S. of 44O02', E. of 119O58' Maupin SW 1-556 Complete Maupin SW WRI 76-26 Warm Springs Indian Reservation only McCain Creek OrGMS-78 Complete McCain Creek 010-92-10 Complete Oregon Geologic Map Index -2116195

Ouad name Publication Scale Coverage

McCaq Butte P 383-B Complete except for SWM McClellan Mountain 0-548 Complete McClellan Mountain MF-50 Complete McConville Peak GF-2 18 Complete McConville Peak MF-848 Complete McConville Peak MF-1528 Complete McConville Peak MF-217 1 Complete except for SEM McCredie Springs 1-1891 Complete McCredie Springs OrSP 15 E. of 122O18' McCullough Creek GF-2 18 Complete McCullough Creek MF-1528 Complete McCullough Creek WRI 79-8 E. of 123O27' McIntyre Creek W 1597 Complete McKay Reservoir W 1620 Complete McKenzie Bridge 15' MF-1952 Wilderness Area only McKenzie Bridge 15' OrGMS-48 Complete McKenzie Bridge 15' OrSP 15 3 mi both sides of Cougar Reservoir McKenzie Bridge OffiMS-48 Complete McKinley GF-73 Complete McKinley OrB 87 Complete McKinley OrOGI 6 Complete McLain Gulch B 1741-B Area between Pine Creek and Snake R. McLain Gulch MF-16 12-A Roadless Area only McLeod MF-1528 Complete McLeod OrGMS-80 Complete McLeod OrQM-2 Complete McMinnville 15' OM-155 Complete McMimville 15' 010-8 1-5 S.% McMimville 15' 010-8 1-6 N. % McMimville 15' W 890 Complete McMimville 15' W 1847 W. of Willamette R. McMinnville OM-155 Complete McMinnville Oro-8 1-6 Complete McMimville W 890 Complete McMinnville W 1847 Complete Meacham W 1620 Complete Meacham WRI 77-3 Umatilla Indian Reservation only Meacham Comer OM42 Complete Meacham Comer W 1697 Complete Meacham Lake W 1597 S. % Meacham Lake W 1620 Complete Mean Rock Well P 383-B Complete Medford 15' (30-89 Complete Medford 15' HA-3 92 Complete Medford 15' MF-1528 Complete Medford 15' OF 81-1076 S. of 42O25' Medford 15' OrB 94 Complete Medford 15' 010-93-13 Complete Medford 15' OrQM-6 Complete Medford 15' P 1521 S. of Rogue R. Medford East GQ-89 Complete Medford East HA-3 92 Complete Oregon Geologic Map Index 39

Ouad name Publication Scale Coverage

Medford East MF-1528 Complete Medford East OF 81-1076 Complete Medford East OrB 94 Complete Medford East 010-93-13 Complete Medford East OrQM-6 Complete Medford East P 1521 Complete Medford West GQ-89 Complete Medford West HA-3 92 Complete Medford West OF 81-1076 Complete Medford West OrB 94 Complete Medford West 010-93-13 Complete Medford West OrQM-6 Complete Medford West P 1521 Complete Medford West MF-1528 Complete Mercer Lake OM-186 Complete Mercer Lake OrB 85 Complete Mercer Lake W 1539-K W. of 124O02' Merlin GF-218 Complete Merlin HA-480 Complete S. of 42O36'30" Merlin MF-1528 Complete Merlin OrB 100 Complete Metolius Bench 1-555 Complete Metolius Bench OrGMS-44 Complete E. of 121°27'30" Metolius Bench WRI 76-26 Warm Springs Indian Reservation only Midway OM-129 Complete Mill City 15' OrB 15 S. of 44O48' Mill City North OrB 15 S. of 44O48' Mill City South OrB 15 N. of 44O42' Mill City South OrB 84 ' T.10 S., R.3 E., secs. 1-10, 15-18 Miller Lake OF 83-660 Roadless Area only Millican B 1744-B N. of 43O58'. W. of 120°56' Milo GF-2 18 Complete Milo MF-1528 Complete Milo WRl79-8 Complete Mineral 15' OrGMS-12 Oregon portion only Miranda Flat SW B 391-J SWK Mission W 1620 Complete Mission WRI 77-3 Urnatilla Indian Reservation only Mi'ssion Bottom OM-155 Complete Mission Bottom 010-8 1-5 Complete Mission Bottom W 890 Complete Mission Bottom W 1833 E. of Willamette R. Mission Bottom W 1847 W. of Willamette R Mitchell 15' 1-872 Complete except for SE% Mitchell 15' OrB 72 Complete Mitchell 1-872 NW% Mitchell OrB 72 Complete Mitchell Butte OffiMS-2 Complete Mitchell Butte OrGMS-6 1 Complete Mitchell Butte OrGMS-77 Complete Moffitt Butte OF 82-847 Complete Mohawk W 2018 Complete 40 Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Molalla 15' OffiMS-32 SE% Molalla 15' OrGMS-33 SW% Molalla W 1997 Complete Monmouth OF 80678 Complete Monmouth OrGMS-18 Complete Monmouth OrGWR 28 Complete Monmouth W 890 Complete Monroe 15' OM-150 Complete Monroe 15' OrB 98 Benton County E. of 123O22'3OW Monroe 15' OrB 98 Benton County portion only Monroe 15' W 890 E. % Monroe 15' W 2040 E.% Monroe OM- 150 Complete Monroe OrB 98 Benton County portion only Monroe OrB 98 Benton County portion only Monroe W 890 Complete Monroe W 2040 Complete Monroe Butte OrGMS-12 Oregon portion only Monument 15' GQ-541 Complete Monument GQ-541 Complete Monument Peak B 1741-C S, of 43040t, E. of 117O54' Monument Peak B 1741-E S. of Malheur R Monument Peak OrGMS-77 Complete Moonlight Butte OF 80-846 T.25 S., R.20 E., secs. 10-15 Moonlight Butte OF 80-846 T.25 S., R20 E., secs. 22-29 Moonlight Butte OF 80-846 T.25 S., R21 E., secs. 19,20 Moonlight Butte P 383-B Complete Moores Hollow 15' OrGWR 34 Malheur R valley and Ontario Heights Mormon Basin B 846-A T. 13 S., R.42 E., secs. 8, 15-22 Mosquito Flat MF-320 Complete Mother Lode Mountain OrB 15 S. of 44O50' Mother Lode Mountain OrGMS-46 Complete Mount Angel 15' W 890 Complete Mount Angel 15' W 1833 W. of Pudding R Mount Ashiand GQ-89 Complete Mount Ashland HA-42 1 Complete Mount Ashland MF-1528 Complete Mount Ashland OrQM-6 Complete Mount Ashland P 1521 E. % Mount Bolivar MF-1528 Complete Mount Bolivar OrB 80 Coos County portion only Mount Bolivar OrB 93 Curry County portion only Mount Bruno B 1230-D Wilderness Area only Mount Bruno GF-89 Complete Mount Bruno OrB 15 Complete Mount Bruno OrGMS-46 Complete Mount Butler B 93 Complete Mount Butler OrB 90 Complete Mount Butler 010-82-3 Complete Mount David Douglas 1-189 1 Complete Mount David Douglas OrSP 15 Complete Mount Defiance OrB 91 Oregon portion only 2/16/95 Oregon Geologic Map Index 4 1

Quad name Publication Scale Coverage

Mount Emily MF-1240-A Wilderness Area only Mount Emily OrB 90 W. of 124'05' Mount Emily OrB 93 Complete Mount Emily OrB 90 Complete Mount Emily OrB 93 Complete Mount Gurney OrB 80 Coos County portion only Mount Gurney OrGMS-85 Complete Mount Gurney WRI 77-28 E. of 123'39' Mount Hood North MF-1379-A Wilderness Area only Mount Hood North OrB 62 S. of 45'27'30" Mount Hood South MF-1379-A Wilderness Area only Mount Hood South OrB 62 N. of 45°17'30" Mount Ireland OrGMS-22 Complete Mount Ireland OrQM-8 Complete Mount Isabelle MF-1528 Complete Mount Isabelle OF 81-1076 Complete Mount Isabelle OrQM-3 Complete Mount Isabelle P 1521 W.% Mount Jefferson 15' B 1230-D Wilderness Area only Mount Jefferson 15' OrB 15 N. %, W. of drainage divide Mount Jefferson 15' OrGMS-46 NW% Mount Jefferson 15' OrGMS-47 SWM Mount Jefferson 15' WRI76-26 Warm Springs Indian Reservation only Mount Jefferson B 1230-D Wilderness Area only Mount Jefferson OrB 15 N.%, W. of drainage divide Mount Jefferson WRI 76-26 Warm Springs Indian Reservation only Mount Lowe OrSP 9 Complete Mount McLoughlin 15' MF-1507-A Roadless Area only Mount McLoughlin 15' MF-1528 Complete Mount McLoughlin MF-1507-A Roadless Area only Mount McLoughlin MF-1528 Complete Mount Moriah B 1385-E Wilderness Area only Mount Peavine B 830 T.35 S., R9 W., secs. 1-3, 10-15 Mount Peavine GQ-25 Complete Mount Peavine MF-1528 Complete Mount Peavine OrB 100 Complete Mount Pisgah OrQM-7 Complete Mount Reuben GQ-25 Complete Mount Reuben MF-1528 Complete Mount Reuben OrB 100, pl. 1 Josephine County portion only Mount Reuben OrB 100, pl. 3 Josephine County portion, T.33 S., R7 W. Mount Tabor B 1119 Complete Mount Tabor GQ-104 Complete Mount Tabor OrQM-9 Oregon portion only Mount Tabor W 890 Complete Mount Tabor W 1793 Complete Mount Tabor WRI 88-4110 N. of 45'3 l', S. of 45'35' Mount Tabor WRI 90-4196 Complete Mount Thielsen 1-1891 Complete Mount Thielsen OF 83-660 Roadless Area only Mount Vernon 15' GQ-548 Complete Mount Vernon 15' MF-50 Complete 42 Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Mount Vernon GQ-548 Complete Mount Vernon MF-50 Complete Mount Washington MF-1952 T.15 S., Rs.7%,8,9 E. Mount Washington OF 83-662 Wilderness Area only Mount Washington 010-92-3 N. of 44O22' Mount Wilson 15' WRI 76-26 Warm Springs Indian Reservation only Mount Wilson WRI 76-26 Warm Springs Indian Reservation only Mowrey Landing 1-868 Complete Mowrey Landing OF-72-350 Complete Mowrey Landing OM-97 Complete Mowrey Landing OrB 8 1 Complete Mowrey Landing WRI 76-90 Complete Muddy Ranch B 17434 NE of John Day R Muddy Ranch 1-872 Complete Muddy Valley OM-155 Complete Mule Deer Ridge 1-542 Complete Mule Deer Ridge OrQM-7 Complete Mule Hill MF-1528 Complete Multnomah Falls OrB 82 Bull Run watershed only Murphy HA-480 Complete N. of 42O 18'11" Murphy MF-1528 Complete Murphy OrB 100 Complete Murphy OrQM-3 Complete Murphy Mountain GP-197 W. of 123O25', aeromagnetic Murphy Mountain HA480 Complete N. of 42018'11n Murphy Mountain MF-1528 Complete Murphy Mountain OrB 100 Complete Murphy Mountain OrQM-3 Complete Mustang Butte OrGMS-78 Complete Mustang Butte 010-92-1 1 Complete Mutton Mountain 1-5 55 Complete Mutton Mountain WRI 76-26 Complete Myrtle Creek GF-49 Complete Myrtle Creek WRI 77-28 W. of 123O21' Myrtle Creek WRI 79% S. of 43O05' Myrtle Park Meadows MF-320 Complete Myrtle Point GF-73 Complete Myrtle Point MF-302 Complete Myrtle Point OrB 87 Complete Myrtle Point OrOGI 6 Complete Namorf OrGMS-74 Complete Namorf OrGMS-77 Complete Nassa Point OrOGI 5 Oregon portion only Nassa Point OM42 Oregon portion only Necanicum Junction OM-42 Complete Necanicum Junction OrB 74 Complete Necanicum Junction OrOGI 14 Complete Nehalem 15' OF 94-21 Complete Nehalem 15' OM42 Complete Nehalem 15' OrB 74 Complete Nehalem OF 94-2 1 Complete Nehalem OM-42 Complete 2/16/95 Oregon Geologic Map Index 43

Quad name Publication Scale Coverage

Nehalem OrB 74 Complete Neskowin OF 90-413 Complete Neskowin OM-97 Complete Neskowin OrB 74 Tillamook County portion only Neskowin WRI 76-90 Lincoln County portion only Nestucca Bay OF 90-202 Complete Nestucca Bay OM-97 Complete Nestucca Bay OrB 74 Complete Netarts OF 94-2 1 Complete Netarts OM42 Complete Netarts OrB 74 Complete New Princeton W 841 Complete Newberg OM42 N. of Willamette R. Newberg OrB 60 Complete Newberg W 890 Complete Newport North GP-48 1 Complete, aerornagnetic Newport North 1-867 Complete Newport North OF 72-352 Complete Newport North OM-88 Complete Newport North OrB 81 Complete Newport North WRI 76-90 Complete Newport South B 1395-F T.ll S., R11 W., secs. 22,23,34 Newport South GP-481 Complete, aeromagnetic Newport South 1-867 Complete Newport South OF 72-352 Complete Newport South OM-88 Complete Newport South OrB 81 Complete Newport South WRI 76-90 Complete Niagara Creek OM-129 Complete Niagara Creek OrB 79 Tillamook County portion only Nickel Mountain B 931-1 T.30 S., R6 W. Nickel Mountain GF-2 18 Complete Nickel Mountain MF-1528 Complete Nickel Mountain WRI 79-8 E. of 123O27' Nicolai Mountain OM42 Complete Nicolai Mountain OIQGI 5 Complete Nicolai Mountain OrOGI 14 Complete Ninemile Slough W 841 Complete No Crossing Crossing MF-1926 Owyhee Canyon Wilderness Study Area Nolin HA-387 Complete Nolin W 1620 Complete Nonpareil WRI 74-32 W. of 1230101 Nonpareil GF-49 Complete North Bend GF-73 Complete North Bend OrB 80 Complete North Bend OrB 87 Complete North Bend OrOGI 6 Complete North Fork OM- 186 Complete North Fork OrB 87 Complete North Fork WRI 83-4017 Complete North MikMeadows B 1385-E Complete North Minam Meadows OrB 12 Complete Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

North Minam Meadows OrQM-10 125k Complete North Powder HA-242 96k Complete North Sister MF-1952 62k Complete North Sister OF 83-662 62k Wilderness Area only Northeast Harney Lake W 841 125k Complete Northwest Harney Lake W 841 125k Complete Nortons GP-481 62k Complete, aeromagnetic Nortons OM- 162 62k Complete Nortons OrB 81 62k Lincoln County portion only Noti OM-110 62k Complete NY~ W 1620 125k Complete Nyssa GF-103 125k Complete Nyssa OrGWR 34 62k Oregon portion only O'Brien B 846-B 3 1k T.40 S., R.8 W., secs. 7-10 O'Brien B 846-B 31k T.40 S., R.8 W., secs. 15-22 O'Brien B 846-B 3 1k T.10 S., R. 8 W., secs. 27-29 O'Brien B 846-B 3 1k T.40 S., R8 W., secs. 32-34 O'Brien B 846-B 31k T.41 S., R8 W., secs. 3-4, 9-10 O'Brien B 846-B 31k T.41 S., R8 W., secs. 15-16 O'Brien GP- 197 96k Complete, aeromagnetic O'Brien MF-1528 125k Complete O'Brien OrB 40 96k Complete O'Brien OrB 100 125k Complete O'Neil 1-1142 48k Complete O'Neil OrQM-1 125k Complete Oak Creek Valley GF-49 125k Complete Oak Point OM42 125k Complete Oak Point OroGI 5 75k Complete Oakridge 15' 1-1891 125k E. of Hills Creek Reservoir Oakridge 15' OrSP 15 62k E. of 122O18' Oakridge 1-1891 125k E.% Oatrnan Flat P 383-B 62k NE% Obenchain Mountain MF-1528 125k Complete Obenchain Mountain OrQM-2 96k Complete Ochoco Butte 1-543 62k Complete Ochoco Butte OrQM-7 96k Complete Ochoco Reservoir 15' 1-541 62k Complete Ochoco Reservoir 1-54 1 62k Complete Olallie Butte B 1230-D 62k Wilderness Area only Olallie Butte OrB 15 125k S. of 44O.50' Olallie Butte OrSP 9 62k Complete Olallie Butte WRI 76-26 62k Warm Springs Indian Reservation only Old Blue OM-204 62k Complete Old Blue WRI 83-4017 look Complete Old Timer Mountain OF 78-805 48k Hells Canyon area only Old Timer Mountain OrGMS-6 125k Oregon portion only Olds Ferry 15' OrGMS-13 62k Oregon portion only Olds Ferry OrCMS-13 62k Oregon portion only Olds Ferry NW OrGMS-13 62k Oregon portion only Olds Ferry SE OrGMS-13 62k Oregon portion only Olive Lake GQ-1654 62k Complete Olney OM42 125k Complete Oregon Geologic Map Index 45

Quad name - Publication Scale Coverage

Olney OrB 74 Complete Olney OrOGI 14 Complete Onehorse Slough GP-2 12 Complete, aeromagnetic Onehorse Slough O~B84 Complete Onehorse Slough OrQM-5 Complete Onehorse Slough W 890 Complete Onion Mountain GP- 197 Complete, aeromagnetic Onion Mountain MF-1349 Complete Onion Mountain MF-1528 Complete Onion Mountain OrB 40 Complete Onion Mountain OrB 100 Complete Opal City 1-1 142 Complete Opal City OrQM-1 Complete Opal Mountain 1-872 Complete Ophlr B 1339 Complete Ophir GF-89 Complete Ophir OrB 90 Complete Ophir OrB 93 Complete Ophir Mountain GF-89 Complete Ophir Mountain OrB 93 Curry County portion only Ordnance HA-387 Complete Ordnance W 1620 Complete Oregon Butte MF- 1926 Owyhee Canyon area Oregon Canyon Ranch B 1742-B Complete except NE edge Oregon Canyon Ranch MF-1473 Complete Oregon Caves 15' GP-197 W. of 123O25', aeromagnetic Oregon Caves 15' MF-1528 Complete Oregon Caves 15' OrB 100 Complete Oregon Caves 15' OrQM-3 Complete Oregon Caves GP- 197 W. of 123O25', aeromagnetic Oregon Caves MF-1528 Complete Oregon Caves OrB 100 Complete Oregon Caves OQM-3 Complete Oregon City 15' B 1119 Complete Oregon City 15' OF 80-1049 S. of 4S025' except NW% Oregon City 15' OM-42 NW% Oregon City 15' OrB 99 Clackamas County portion only Oregon City 15' OrGMS-59 NW% Oregon City 15' OrGWR 29 S. of 45O25' except NW% Oregon City 15' OrQM-9 Complete Oregon City 15' W 1697 W. of Willamette R. Oregon City 15' W 1793 NE% Oregon City 15' W 890 Complete except for SENSE% Oregon City 15' WRI 90-4196 N. % Oregon City B 1119 Complete Oregon City OF 80-1049 Complete Oregon City OM-42 W. of Willamette R. Oregon City OrB 99 Complete Oregon City OrGWR 29 Complete Oregon City OrQM-9 Complete Oregon City W 890 Complete except for SE% owyhee OffiMS-2 Complete 46 Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Owyhee OffiMS-77 Complete Owyhee Butte MF-2 167 Owyhee Canyon area Owyhee Dam OrGMS-2 Complete Owyhee Dam OffiMS-55 Complete Owyhee Dam OffiMS-77 Complete Owyhee Ridge OffiMS-2 Complete Owyhee Ridge OffiMS-53 Complete Owyhee Ridge OffiMS-77 Complete Oxbow B 1741-B W. of Snake R, S. of Oxbow Oxman B 879 Complete Packsaddle Mounitain MF-1952 Complete Page Springs W 841 W. of 118O50' Painted Hills 1-872 Complete Palomino Buttes W 841 E. of 11g020' Parkdale OrB 91 T. 1 N., R 10 E., secs. 1-12, 14-22 Parkdale OrB 91 T. 1 N., R.10 E., secs. 27-24 Parkdale OrB 91 T.2 N., R 10 E. Parkdale OffiwR 10 Upper Hood R valley only Parker Mountain MF-1528 Complete Parma GF-103 Complete Paterson HA-387 Oregon portion only Paulina Peak OF 82-847 Complete Payette OrGWR 34 Oregon portion only Payne Creek B 931-N Complete Payne Creek B 1742-B Oregon Canyon Mountains area Pearsoll Peak 15' GP-197 Complete, aeromagnetic Pearsoll Peak 15' MF-1240-A Wilderness Area only Pearsoll Peak 15' MF-1528 Complete Pearsoll Peak 15' OF 80-1243 T.37 S., R. 10 W., secs. 30-3 1 Pearsoll Peak 15' OrB 40 Complete Pearsoll Peak 15' OrB 88 S. % Pearsoll Peak 15' OrB 93 Curry County portion only Pearsoll Peak 15' OrB 100 Josephine County portion only Pearsoll Peak 15' OffiMS-30 SE% Pearsoll Peak GP- 197 Complete, aeromagnetic Pearsoll Peak MF-1240-A Wilderness Area only Pearsoll Peak MF-1528 Complete Pearsoll Peak OrB 40 Complete Pearsoll Peak OrB 88 SW'h Pearsoll Peak OrB 93 Cuny County portion only Pearsoll Peak OrB 100 Josephine County portion only Pearsoll Peak OffiMS-30 Complete Pelican Bay MF-1528 Complete Pelican Butte 15' GQ-1653 Complete Pelican Butte 15' hilF- 1507-A Roadless Area only Pelican Butte 15' MF-1528 Complete Pelican Butte GQ-1653 Complete Pelican Butte MF- 1507-A Roadless Area only Pelican Butte MF-1528 Complete Pelican Point MF-1904 Complete Pelican Point OrGMS-78 Complete Pendleton W 1620 Complete Oregon Geologic Map Index 47

Ouad name Publication Scale

Pendleton WRI 77-3 Pendleton and immediate vicinity Peoria OM-150 Benton County portion only Peoria OrB 84 Linn County portion only Peoria OrB 98 Benton County portion only Peoria W 890 Complete Peoria W 2040 S. of 44O29' Peters Creek Sink P 383-B Complete Petersburg OrB 91 Complete Peterson Point OrQM-7 Complete Phillips Lake OrQM-8 Complete Pickett Butte MF-1528 Complete Pickett Butte OrQM-2 Complete Pilot Butte 1-540 Complete Pilot Rock W 1620 Complete Pine Creek Mountain B 922 N. of 44O20' Pine Creek Mountain B 1498 Complete Pine Creek Mountain MF-5 1 Complete Pinhead Buttes OrSP 9 Complete Pinhead Buttes WRI 76-26 Warm Springs Indian Reservation only Pistol Butte 1-1967 W.% Pittsburg OrOGI 5 Complete Pogue Point OrQM-8 Complete Poison Creek MF-320 Complete Poison Creek W 841 Complete Poison Creek Slough W 841 Complete Poison Point OrGMS-6 Complete Pole Canyon OF 81-1092 N. % Pole Canyon OF 83-285 Complete Pole Creek Top OrGMS-78 Complete Porcupine Butte 1-872 Complete Port Orford 15' B 1339 Complete Port Orford 15' GF-89 Complete Port Orford 15' OrB 93 Complete Port Orford 15' OrB 90 Complete Port Orford B 1339 Complete Port Orford GF-89 Complete Port Orford OrB 90 Complete Port Orford OrB 93 Complete Porters Flat OrGMS- 13 Oregon portion only Portland 15' B 1119 Complete Portland 15' GQ- 104 Complete Portland 15' OM42 SW1/8 Portland 15' OrGMS-75 SW% Portland 15' OrGMS-79 SW%, earthquake hazard maps Portland 15' o~QM-~ Oregon portion only Portland 15' W 890 S.% Portland 15' W 1619-0 Downtown Portland only Portland 15' W 1793 E. of Willamette R Portland 15' WRI 90-4 196 Complete Portland B 1119 Complete Portland GQ-104 Complete Portland OM-42 W. of Willamette R Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Portland OrGMS-75 Complete Portland OrGMS-76 Earthquake hazard maps Portland Om-9 Oregon portion only Portland W 890 Complete Portland W 1619-0 Downtown Portland only Portland W 1793 E. of Willamette R Portland WRI 90-4 196 Complete Post 15' 1-542 Complete Post 15' OrQM-7 Complete Post 1-542 Complete Post OrQM-7 Complete Postage Stamp Butte 1-556 Complete Posy Valley OrB 3 Oregon portion only Potter Mountain 1-1891 Complete Potters Ponds 1-555 Complete Potters Ponds WRI 76-26 Complete Powell Butte OrQM-1 Complete Powell Buttes 15' B 1744-B S. of 44O03', W. of 120°56' Powers 15' GF-89 Complete Powers 15' MF-1381-A Wild Rogue Wilderness Area only Powers 15' OrB 80 Coos County portion only Powers 15' OrB 87 N. of 42O50', Coquille R. area Powers 15' OrB 93 Cuny County portion only Powers 15' OrGMS-5 Complete Powers GF-89 Complete Powers OrB 80 Complete Powers OrB 87 T.30 S., R.12 W., secs. 15, 22-23 Powers OrB 87 T.30 S., R 12 W., secs. 26-28 Powers OrB 87 T.30 S., R.12 W., secs. 33-36 Powers OrB 87 T.31 S.,R.11 W.,secs.7,18 Powers OrB 87 T.31 S.,R12W.,secs. 1-4,9-15 Powers OrGMS-5 Complete Prairie City 15' B 1498 S.% Prairie City 15' OF 67-214 Complete Prairie City OF 67-214 Complete Prairie Fann Spring WRJ 76-26 Warm Springs Indian Resewation only Prairie Hill 1-542 Complete Prairie Hill OrQM-7 Complete Prairie Peak OM- 162 Complete Prineville 15' W 1619-P Prineville Valley area only Prineville W 1619-P Prineville Valley area only Prospect 15' MF-1528 Complete Prospect North MF-1528 Complete Prospect South MF-1528 Complete Puderbaugh Ridge OF 78-805 Hells Canyon Wilderness Area only Puderbaugh Ridge OrGMS-6 Complete Pueblo Mountain B 931-J E. of 11S040' Pueblo Mountain B 995-B E.%, T.40 S., R.34 E. Pueblo Mountain B 995-B T.40 S., R 35 E. Pumice Desert East 1-1891 Complete Pumice Desert East OF 83-660 Roadless Area only Pumice Desert West 1-1891 Complete Oregon Geologic Map Index 49

Quad name Publication Scale Coverage

Putnam valley B 1122-D Complete Putnam Valley WRI 76-105 E. of 123O28' Quad Prairie Mountain B 1339 Complete Quad Prairie Mountain MF-1240-A Wilderness Area only Quad Prairie Mountain OrB 93 Complete Quart. Mountain Basin OrGMS-78 Complete Quartzville 15' OrB 15 N. of 44O42' Quartzvllle 15' OrB 84 N. of 44'42' and T. 12 S., R3 E. QnesCreek GF-2 18 Complete QnesCreek MF-1528 Complete Qumes Creek WRI 79-8 Complete Quosatana Butte B 1339 Complete Quosatana Butte MF-1240-A Wilderness Area only Quosatana Butte OrB 93 Complete Rabbit Mountain MF-1528 Complete Rabbit Valley OrQM-7 Complete Ragsdale Butte OrQM-2 Complete Ragsdale Butte MF-1528 Complete Rail Creek Butte MF-82 Complete Rail Gulch OrQM-4 Complete Rainier OM42 Oregon portion only Rasler Creek MF-1528 Complete Rasler Creek OrB 80 Complete Rastus Mountain 010-79-7 Complete Rastus Mountain OrQM-4 Complete Rat Point OF 78-805 E. of Summit Ridge Rawhide Pocket MF- 1926 Owyhee Canyon area Rawhlde Springs MF- 1926 Owyhee Canyon area Red Blanket Mountain MF-1528 Complete Red Lookout Butte OF 81-1092 SE% Red Lookout Butte OF 83-283 Complete Red Mountain OF 81-1092 S. ?4 Red Mountain OF 83-282 Complete Redess W 841 Complete Redland B 1119 Complete Redland OF 80-1049 Complete Redland OrB 99 Complete Redland OrGWR 29 Complete Redland OrQM-9 Complete Redmond 1-1 142 Complete Redmond OrB 89 Complete Redmond OrQM-1 Complete Reedsport 15' OF 80-444 Complete Reedsport 15' OM-204 Complete Reedsport 15' OrB 80 Coos County portion only Reedsport 15' OrB 87 Complete Reedsport 15' OrOGI 6 Complete Reedsport 15' WRI 83-4017 Douglas County portion only Reedsport OF 80-444 Complete Reedsport OM-204 Complete Reedsport OrB 87 Complete Reedsport OrOGI 6 Complete 50 Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Reedsport WRI 83-4017 Complete Remote OrB 80 Complete Remote OrGMS-84 Complete Reston OrGMS-68 Complete Reston WRI 77-28 Complete Rhododendron MF-1379-A Wilderness Area only Rhododendron OF 80-1049 N. of 45O17'30" Rhododendron OrGWR 29 N. of 45O17'30" Rchland OrB 3 Complete Richmond 15' 1-872 NW% Richmond 1-872 Complete except extreme SE% Richter Mountain MF-1528 Complete Richter Mountain MF-2171 SW% Richter Mountain OrQM-2 Complete Rickreall OF 80-678 Complete except NE% Rickreall OrGMS- 18 Complete Rickreall OrGWR 28 Complete except NE% Rickreall W 890 Complete Rickreall W 1847 Complete Rigdon Point 1-1891 Complete Rinehart Canyon MF-2 167 Owyhee Canyon area Rinehart Canyon OrGMS-78 Complete Rinehart Canyon 010-93-5 Complete Ring W 1620 Oregon portion only Rio Canyon GQ-89 Complete Rio Canyon MF-1528 Complete Rio Canyon OrQM-6 Complete Rio Canyon P 1521 SW% Riverside GP-48 1 Complete, aeromagnetic Riverside OM- 150 Benton County portion only Riverside OrB 37 Complete Riverside OrB 84 Linn County portion only Riverside OrB 98 Benton County portion only Riverside W 890 Complete Riverside W 2032 Complete Riverton B 945-E Complete Riverton GF-73 Complete Riverton OrB 87 Complete Riverton OrOGI 6 Complete Roaring Creek OF 94-2 1 Complete Roaring Creek OM42 Complete Roberts Creek B 1498 W. of 118O35' Roberts Creek OF 67-214 Complete Robinson Butte MF-1528 Complete Rock Creek HA-242 Complete except for National Forest Rock Creek OrQM-8 Complete Rock Creek Reservoir 1-556 Complete Rockhouse Reservoir MF-1926 Owyhee Canyon area Rockville OffiMS-78 Complete Rockville 010-92-12 Complete Rogers Peak OF 94-21 Complete Rogers Peak OM42 Complete 2/16/95 Oregon Geologic Map Index 5 1

Ouad name Publication Scale Coverage

Rogue River MF-1528 Complete Rogue River OF 81-1076 S. of 42'25', E. of 123'10' Rogue River OrB 94 Complete Rogue River OrQM-3 Complete Roman Nose Mountain 15' OM- 186 Complete Roman Nose Mountain 15' WRI 83-4017 Douglas County portion only Roman Nose Mountain OM- 186 Complete Roman Nose Mountain WRI 83-4017 Douglas County portion only Rooster Comb B 1741-D E. of 1170211,S. of 43'20' Rooster Comb MF-1902 Complete Rooster Comb OrGMS-78 Complete Rose Hill B 893 SEXSEK Roseburg 15' GF-49 Complete Roseburg 15' WRI 77-28 W. of 123'21' Roseburg 15' WRI 79-8 S. of 43O05', E. of 123'27' Roseburg East GF-49 Complete Roseburg East WRI 77-28 W. of 123O21' Roseburg West GF-49 Complete Roseburg West WRI 77-28 Complete Round Butte Dam 1-555 Complete Round Butte Dam MF-1303-A S. of 44'35' Round Butte Dam WRI 76-26 Warm Springs Indian Reservation only Round Mountain 1-1967 Complete Rowe Creek 1-872 Complete Ruch 15' MF-1528 Complete Ruch 15' OF 81-1076 E. of 123O10' Ruch 15' OF 92-695 SW% Ruch 15' OF 93-703 SE% Ruch 15' OrB 94 NE% Ruch 15' OrQM-3 Complete Ruch MF-1528 Complete Ruch OF 81-1076 Complete Ruch OrB 94 Complete Ruch OrQM-3 Complete Rufino Butte OrGMS-77 Complete Rufino Butte 010-92-17 Complete Rufus OrB 91 W. of 120'41' Rustler Peak 15' MF-1507-A Roadless Area only Rustler Peak 15' MF-1528 Complete Rustler Peak MF-1507-A Roadless Area only Rustler Peak MF-1528 Complete Rye Valley OrGMS-13 Complete Ryegrass Butte MF-2079 E. % Sacramento Butte OrGMS-78 Complete Sacramento Butte 010-92-13 Complete Saddle Butte OrGMS-78 Complete Saddle Butte 010-92-14 Complete Saddle Mountain 15' OM42 Complete Saddle Mountain 15' OrB 79 Complete Saddle Mountain 15' OrOGI 14 Complete Saddle Mountain OM-42 Complete Saddle Mountain OrB 79 Complete 52 Oregon Geologic Map Index 2/16/95

Quad name Publication Scale

Saddle Mountain OrOGI 14 Complete Sage Hen Hill W 841 E. of 119O20' Sager Creek OM42 Complete Sager Creek OrB 79 Complete Sager Creek OrOGI 5 Complete Sager Creek OaGI 14 Complete Saint Patrick Mountain MF-2121 Complete Salem 15' OF 80-678 Polk County only, not Eola Hills Salem 15' OrB 15 SE% Salem 15' OrGMS- 18 Complete Salem 15' OrGWR 28 Polk County only, not Eola Hills Salem 15' W 890 Complete Salem 15' W 1594-F S. Salem Hills area Salem 15' W 1847 NW% Salem East W 890 Complete Salem East W 1997 Complete Salem West OrGMS- 18 Complete Salem West W 890 Complete Salem West W 1594-F S. of 44O56' Salmon OF 80-1049 N. of 45O17'30" Salmon OrGWR 29 N. of 45O17'30" Salmon Fork 1-872 Complete Salt Butte 1-54 1 Complete Sams Valley GQ-89 Complete Sams Valley HA-392 Complete Sams Valley MF-1528 Complete Sams Valley OF 81-1076 S. of 42O25' Sams Valley OrB 94 Complete Sams Valley 010-93-13 Complete Sams Valley OrQM-6 Complete Sams Valley P 1521 S.% Sand Gap W 841 Complete Sand Hollow B 1744-A N. of 43O54' Sand Hollow MF-2156 Complete Sand Lake OF 94-21 Complete Sand Lake OM42 Complete Sand Lake OrB 74 Complete Sand Rock OF 80-846 Complete Sand Rock P 383-B Complete Sanderson Spring W 1620 Complete Sandhlll Crossing MF-1367 Wilderness Area only Sandrock Mountain B 969 T.10 S., R.19 E., secs. 5-9, 17-18 Sandrock Mountain 1-872 Complete Sandy 15' B 1119 Complete Sandy 15' OF 80-1049 S. of 45O25' Sandy 15' OrB 99 Clackamas County portion only Sandy 15' OrGMS-60 NW% Sandy 15' OrGWR 29 S. of 4S025' Sandy 15' OrQM-9 Complete Sandy 15' W 1793 N. % Sandy 15' WRI 904196 N. of Eagle Creek and Clackamas R. Sandy B 1119 Complete 2/16/95 Oregon Geologic Map Index 53

Quad name Publication Scale Coverage sandy OF 80-1049 S. of 45'25' sandy OrB 99 Clackamas County portion only sandy OrGWR 29 S. of 45O25' Sandy OIQM-9 Complete Sandy W 1793 Complete Sandy WRI 90-4196 Complete Santiam Junction B 1230-D Wilderness Area only Santiam Junction OrGMS-47 Complete Santiam Junction 010-92-3 Complete Sardine Butte 15' 1-1891 Complete Sardine Butte 1-1891 Complete Sawie Island B 1119 Complete Sawie Island OM42 Oregon portion only Sawie Island WRI 90-4196 Complete Sawmill Butte WRI 76-26 Complete Sawtooth Ridge B 830 SE% Sawtooth Ridge B 879 Complete Sawtooth Ridge 01-0-77-la Complete Schaub Lake P 383-B Complete Scholls OM42 Complete Scholls OrB 60 Complete Scholls W 890 Complete Scholls W 1697 Complete Scio GP-2 12 Complete, aeromagnetic Scio OrB 15 N. of 44O43' Scio OrB 84 Complete Scio OrQMJ Complete Scio W 890 Complete Scott Reservoir MF- 1926 Owyhee Canyon area Scotts Mills OrGMS-33 Complete Scotts Mills W 1997 Complete Scotts Valley B 850 Complete Scotts Valley B 1122-D Complete Scotts Valley WRI 76-105 Complete Scottsburg 15' OM-204 Complete Scottsburg 15' OrB 80 Coos County portion only Scottsburg 15' OrB 87 Douglas County portion only Scottsburg 15' WRI 83-4017 Douglas County portion only Scottsburg OM-204 Complete Scottsburg OrB 87 Complete Scottsburg WRI 83-4017 Complete Scotty Creek 1-1021 N. of 44O 10' Scotty Creek MF-82 Complete Scratch Post Butte W 1619-M Cow Valley area only Scratch Post Mountain W 1619-M Cow Valley area only Seekseequa Junction GP- 197 Complete, aeromagnetic Seekseequa Junction OrGMS-44 Complete Seekseequa Junction WRI 76-26 Warm Springs Indian Reservation only Selma 15' GP- 197 Complete, aeromagetic Selma 15' MF-1349 Complete Selma 15' MF-1528 Complete Selma 15' OrB 40 Complete Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Selma 15' OrB 100 Complete Selma GP- 197 Complete, aeromagnetic Selma MF-1349 Complete Selma MF-1528 Complete Selma OrB 40 Complete Selma OrB 100 Complete Seneca 15' 1-1021 N. of 44O 10' Seneca 1-1021 N. of 44O 10' Service Buttes HA-3 87 Complete Service Buttes W 1620 Complete Service Buttes NW HA-3 87 Complete Service Buttes NW W 1620 Complete Service Creek 1-872 Complete Sevenmile Creek W 1620 Complete Sexton Mountain GF-2 18 Complete Sexton Mountain HA480 Complete S. of 42O36'30" Sexton Mountain MF-1528 Complete Sexton Mountain OrB 100, pl. 1 Complete Sexton Mountain OrB 100, pl. 3 E. of Interstate 5 Shady Cove MF-1528 Complete Shady Cove OrB 94 Complete Shady Cove OrGMS-52 Complete Shady Cove OrQM-2 Complete Shaniko 1-872 Complete Shaniko Summit 1-872 Complete Sharp TOP MF-2121 Complete Sheaville OrGMS-64 Oregon portion only Sheaville OrGMS-78 Complete Sheep Creek Divide OrGMS-6 Complete Sheep Ridge OF 67-2 12 Complete Sheep Rock P 383-B N. of drainage divide Sheeplick Draw P 383-B N. of drainage divide Sherars Bridge 1-556 Complete Sheridan 15' OM-155 Complete Sheridan 15' OrGMS-23 SW% Sheridan 15' 010-82-2 SE% Sheridan OM-155 Complete Sheridan OrGMS-23 Complete Shenvood OM42 N. of Willamette R. Shenvood OrB 60 Complete Sherwood OrB 99 Clackamas County portion only Sherwood W 890 Complete Sherwood W 1697 Complete Shevlin Park &F-2189 E. % Shevlin Park OrB 89 E. of 121°25'30" Shevlin Park OrQM-1 Complete Shitike Butte WRI 76-26 Warm Springs Indan Reservation only Shoestring Butte OF 80-532 Complete Shoestring Ridge B 1743-B SW comer only Shop Gulch MF-49 Complete Shop Gulch GQ-43 8 Complete Shumway Reservoir B 17414 Extreme NE comer Oregon Geologic Map Index 55

Quad name Publication Scale Coverage

Shumway Reservoir OrGMS-77 look Complete Sidney OrB 15 125k Complete Sidney MMS-18 24k Complete Sidney W 890 125k Complete Sidney W 1594-F 48k S. Salem area Sidwalter Buttes WRI 76-26 62k Complete Signal Buttes B 1339 125k Complete Signal Buttes OrB 90 62k Complete Signal Buttes OrB 93 125k Complete Siltcws Lake 15' OrB 85 62k Lane County portion only Siltcoos Lake 15' OrB 87 62k Douglas County portion only Siltcoos Lake 15' OrOGI 6 62k Complete Siltcoos Lake 15' W 1539-K 3 1k T.18 S., R.ll W., secs. 19,30,31 Siltcoos Lake 15' W 1539-K 31k T. 18 S., R. 12 W. Siltcoos Lake 15' WRI 83-4017 look Douglas County portion only Silver Butte GQ-1654 62k Complete Silver Butte MF-1581-C 48k North Fork John Day R. area Silver Creek Falls OrGMS-50 24k . Complete Silver Creek Falls W 1997 48k Complete Silver Lake P 383-B 62k Complete Silver Peak GP- 197 96k Complete, aeromagnetic Silver Peak MF-1240-A 62k Wilderness Area only Silver Peak MF-1528 125k Complete Silver Peak OrB 40 96k Complete Silver Peak OrB 100 125k Josephine County portion only Silverton W 890 125k Complete Silverton W 1833 48k W. of Pudding R Silverton W 1997 48k Complete Simnasho 1-555 125k Complete Simnasho WFU 76-26 62k Complete Sinker Mountain 1-1891 125k Complete Siskeyville OrB 79 62k N. of 45O25' Siskeyvdle OM42 125k Complete Siskiyou Pass GQ-89 96k Complete Siskiyou Pass HA421 62k Complete Siskiyou Pass MF-1528 125k Complete Siskiyou Pass OrQM-6 96k Complete Siskiyou Pass P 1521 62k W.% Siskiyou Peak GQ-89 96k Complete Siskiyou Peak MF-1528 125k Complete Siskiyou Peak OF 81-1076 62k Complete Siskiyou Peak OrQM-6 96k Complete Sisters 15' MF-1952 62k Wilderness Area only Sisters 15' 010-92-3 62k N. of 44O22' Sisters 010-92-3 62k N. of 44'22' Sitkum 15' OrB 80 62k Complete Sitkum 15' OrB 87 62k T.28 S., R10 W., secs. 1-13 Sitkum 15' OrB 87 62k T.28 S., R.ll W., secs. 10-15 Sitkum 15' OrB 87 62k T.28 S., R11 W., secs. 22-24 Sitkum 15' OrGMS-83 24k SE% Sitkum 15' OrGMS-84 24k SW% Sih OrB 80 62k Complete 56 Oregon Geologic Map Index 2/16/95

Quad name Publication - Scale Coverage

Sitkum OrB 87 T.28 S., R10 W., secs. 1-3 Sitkum OrB 87 T.28 S., R10 W., secs. 10-13 Sixes GF-89 Complete Sixes OrB 90 Complete Sixes OrB 93 Complete Sixes OrO-82-3 Complete Skeleton Mountain GF-218 Complete Skeleton Mountain MF-848 Complete Skeleton Mountain MF-1528 Complete Skeleton Mountain MF-2 17 1 Complete except for NW% Skull Creek MF- 1926 Owyhee Canyon area Skull Springs OffiMS-78 Complete Sleepy Ridge OrGMS-6 Complete . Slickear Mountain GQ-541 Complete Smeltz W 1620 Oregon portion only Smith River Falls OM- 186 Complete Smith River Falls OrB 87 Complete Smith River Falls WRI 83-4017 Complete Snow Peak 15' OrB 84 Tps.lO,ll S., R1E. Snow Peak 15' OrB 84 T.10 S., R2E., secs. 1-10, 15-22 Snow Peak 15' OrB 84 T.10 S., R2 E., secs. 29-32 Snow Peak 15' OrB 84 T. 11 S., R.2 E., secs. 5-8, 17-20 Snow Peak 15' OrB 84 T. 11 S., R.2 E., secs. 29-30 Snow Peak 15' OrB 84 T.12 S., R1E., secs. 4-9, 16-21 Soapstone Lake OM-42 . Complete Soapstone Lake OrB 74 Complete Soapstone Lake OrOGI 14 Complete Socialist Valley OF 80-678 Complete Socialist Valley OrB 35 Complete Socialist Valley OrGWR 28 Complete Soda Mountain MF-1528 Complete Soldier Camp Mountain B 1339 Complete Soldier Camp Mountain GF-89 Complete Soldier Camp Mountain OrB 93 Complete Sourdough Spring OffiMS-2 Complete Sourdough Spring OrGMS-77 Complete Sourdough Spring 010-93 - 11 Complete South Ice Cave OF 82-847 Complete South Mountain B 1741-E T.21 S.,R.?9E..secs. 13-14,23-24 South Mountain OrGMS-67 Complete South Mountain OrGMS-77 Complete South of Ana River MF-2 121 Complete South Sister 1-1967 SE% South Sister MF-1952 Complete Southeast Harney Lake W 841 Complete Southwest Harney Lake W 841 Complete Sparta 15' B 830 T.7 S., R.43 E., secs. 15-22 Sparta 15' B 830 T.7 S., R.43 E., secs. 27-34 Sparta 15' B 830 T.8 S., R.43 E., secs. 2-11 Sparta 15' B 830 T.8 S., R.43 E., secs. 14-18 Sparta 15' B 1385-E Wilderness 'Area only Sparta 15' OrB 3 N. of Powder R and E. of 117O25' Oregon Geologic Map Index 57

Quad name Publication Scale Coverage

Sparta 15' OrGMS- 1 62k Complete Sparta OrGMS-1 62k Complete Sparta Butte OrB 3 96k Complete Sparta Butte OrGMS-1 62k Complete Spencer Creek MF-1528 125k Complete Spray 15' 1-872 125k Complete except for SE% spray 1-872 125k Complete except for SE% Spring Butte OF 82-847 62k Complete Springer Mountain OM-129 48k Complete Springtield W 2018 62k Complete Squaw Back Ridge MF-1303-A 48k Complete Squaw Back Ridge OrQM-1 125k Complete Squaw Flat MF- 1926 62k Owyhee Canyon area Squaw Lakes MF-1528 125k Complete Squaw Lakes OF 93-703 24k Complete Squaw Lakes OF 81-1076 62k Complete Squaw Lakes OrQM-3 125k Complete Squirrel Prairie OF 78-805 48k Complete Squirrel Prairie OrGMS-6 125k Oregon portion only St. Helens 15' OM42 125k Oregon portion only St. Helens 15' OrB 3 1 62k Complete St. Helens 15' WRI 904196 look S.% St. Helens OM42 125k Complete St. Helens OrB 3 1 62k Complete St. Helens WRI 90-4196 look Complete St. Patrick Mountain P 383-B 62k N. of drainage divide St. Paul W 890 125k Complete St. Paul W 1833 48k Complete Stacker Butte OrB 91 62k Complete Stanfield HA-387 125k Complete Stanfleld W 1620 125k Complete Stanfield SE HA-3 87 125k Complete Stanfield SE W 1620 125k Complete Star Creek Reservoir OrGMS-78 look Complete Starvout Creek GF-2 18 125k Complete Starvout Creek MF-1528 125k Complete Starvout Creek WRI 79-8 62k N. of 42O46' Stayton 15' OrB 15 125k S. of 44'55' Stayton 15' OrB 84 62k Linn County portion only Stayton 15' OrGMS-34 24k NE% Stayton 15' W 890 125k Complete Stayton 15' W 1997 48k N. of 44O49' Stayton OrB 15 125k Complete Stayton W 890 125k Complete Stayton 1997 48k N. of 44O49' Stayton NE OrGMS-34 24k Complete Stayton NE W 890 125k Complete Stayton NE W 1997 48k Complete Steamboat Lake B 1385-E 62k Complete Steamboat Lake OrB 12 96k Complete Steamboat Lake OrQM- 10 125k Complete Steelhead Falls MF-1303-A 48k Complete Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Steelhead Falls OrQM-1 Complete Steet Mountain GQ-54 1 Complete Steins Pillar 1-54 1 Complete (Wildcat Mountain) Stephenson Mountain 1-872 Complete Sterling Creek GQ-89 Complete Sterling Creek MF-1528 Complete Sterling Creek OF 81-1076 Complete Sterling Creek OrQM-6 Complete Sterling Creek P 1541 NE% Stinking Lake W 841 E. of 119O20' Stinkingwater Pass W 841 Complete except for NW portion Stoney Corral MF- 1926 Owyhee Canyon area Stott Mountain 1-868 Complete Stott Mountain OF 72-350 Complete Stott Mountain OM-97 Complete Stott Mountain OrB 81 Complete Stott Mountain WRI 76-90 Complete Stout Mountain OrB 15 S. of 44O50' Stout Mountain W 1997 N. of 44O49' Strawberry Canyon NE HA-387 Complete Strawberry Canyon SE HA-3 87 Complete Strawbeny Canyon SW HA-387 Complete Strawberry Mountain B 1498 Complete Strawberry Mountain OF 67-214 Complete Sturgdl Creek OrGMS-12 Oregon portion only Substitute Point MF-1952 Complete Sugarpine Creek MF-1528 Complete Sugarpine Creek OrQM-2 Complete Summit GP-48 1 Complete, aeromagnetic Summit OM-162 Complete Summit Lake 15' 1-1891 Complete Summit Lake 15' OF 83660 Roadless Area only Summit Lake 15' OF 83-66 1 Wilderness Area only Summit Lake 15' OrSP 15 N. of 43O28' Sumpter OrQM-8 Complete Sundown Mountain B 1339 Complete Sundown Mountain OrB 69 W.% Sundown Mountain OrB 90 Complete Sundown Mountain OrB 93 Complete Sunset Spring OM42 Complete Sunset Spring OrB 79 Complete Sunset Spring OIOGI 5 Complete Sunset Spring OrOGI 14 Complete Suplee OrB 58 E. of 119O41' Surveyor Mountain 15' MF-1528 Complete Surveyor Mountain MF-1528 Complete Susanville 15' OrB 39 Middle Fork John Day R. area Susanville OrB 39 Middle Fork John Day R. area Sutherlin 15' GF-49 Complete Sutherlin 15' WRI 74-32 Complete Sutherlin GF-49 Complete Sutherlin WRI 74-32 Complete 2/16/95 Oregon Geologic Map Index 59

Quad name Publication Scale Coverage

Sutton Mountain 1-872 Complete Sutton Mountain Or% 72 Complete Svenson 15' OM-42 Complete Svenson 15' Or% 74 W. of 123O35' Svenson 15' OrB 79 E. of 123O36' Svenson 15' OrOGI 14 Complete Sweet Home 15' OrB 84 Complete except for T. 15 S., R2 W Sweet Home Or% 84 Complete Table Rock W 1620 Complete Table Rock WRI 77-3 Complete Tahkenitch Creek OM- 186 Complete Tahkenitch Creek OrB 87 Douglas County portion only Tahkenitch Creek OrOGI 6 Complete Tahkenitch Creek WRI 83-4017 Douglas County portion only Takilma B 846-B T.40 S., R.8 W., secs. 23-26, 35-36 Takilma B 846-B T.41 S., R.8 W., secs. 1-2, 11-14 Takilma GP- 197 Complete, aeromagnetic Taklllna MF-1528 Complete Takilma OrB 40 Complete Takilma OrB 100 Complete Talent 15' GQ-89 Complete Talent 15' HA-3 92 NE portion (Talent urban area) Talent 15' MF-1528 Complete Talent 15' OF 81-1076 Complete Talent 15' OrB 94 m1/6 Talent 15' OrQM-6 Complete Talent 15' P 1541 NE% Talent GQ-89 Complete Talent HA-3 92 T.38 S., R.1 W., secs. 21-28 Talent HA-392 T.38 S., R.l W., secs. 33-36 Talent HA-3 92 W. part, secs. 19, 30-31, T.38 S., R.l W Talent MF-1528 Complete Talent OF 81-1076 Complete Talent OrB 94 NE% Talent OrQM-6 Complete Talent P 1541 Complete except for SE% Tallowbox Mountain MF-1528 Complete Tallowbox Mountain OF 81-1076 E. of 123O10' Tallowbox Mountain OrQM-3 Complete Tamolitch Falls 010-92-3 N. of 14O22' Tangent GP-48 1 Complete, aeromagnetic Tangent OrB 37 Complete Tangent OrB 84 Complete Tangent W 890 Complete Tangent W 2032 Complete Tanner Butte OrB 82 Buil Run watershed only Teller Butte B 1161-D Tps.9,10 S., R.15 E. Teller Butte 1-872 Complete Telocaset HA-242 Baker County S. of Powder Riv. Tenmile OrGMS-86 Complete Tenmile WRI 77-28 Complete Temperance Creek OF 78-805 Snake R to Summit Ridge Oregon Geologic Map Index 2/16/95

Ouad name Publication Scale Coverage

Temperance Creek OrGMS-6 Oregon portion only The Dalles 15' OrB 91 Oregon portion only The Dalles North OrB 91 Oregon portion only The Dalles South OrB 91 Oregon portion only The Elbow OrGMS-2 Complete The Elbow OrGMS-62 Complete The Elbow OrGMS-77 Complete The Hole in the Ground B 1741-G N. of 43O10' The Hole in the Ground MF-2 167 Owyhee Canyon area The Hole in the Ground OrGMS-78 Complete The Nanows W 841 Complete The Peninsula OF 94-21 Complete The Peninsula OM-42 Complete The Peninsula OrB 79 N. of 4S025' The V OF 89-35 1 Complete Thimblebeny Mountain W 1620 Complete Thorn Hollow W 1620 Complete Thorn Hollow WRI 77-3 Complete Thorn Lake P 383-B Complete Thousand Springs MI?-1528 Complete Three Creek Butte MF-1952 Complete Three Fingered Jack 15' B 1230-D Wilderness Area only Three Fingered Jack 15' MF-1952 Wilderness Area only Three Fingered Jack 15' OF 83-662 Wilderness Area only Three Fingered Jack 15' OrGMS47 NW% Three Fingered Jack 15' 010-92-3 N. of 44'22' Three Fingered Jack 15' W 597 T.14 S., R.7E., secs. 5,8,17 Three Fingered Jack 15' W 597 T.14 S., R.7 E., secs. 20,29 Three Fingered Jack B 1230-D Wilderness Area only Three Fingered Jack 010-92-3 Complete Three Fingers Rock OF 89-344 Complete Three Fingers Rock OrGMS-78 Complete Three Forks MF-1926 Owyhee Canyon area Three Sisters 15' MF-1952 Complete Three Sisters 15' OF 83-662 Wilderness Area only Tidewater 15' 1-866 Complete Tidewater 15' OF 72-3 5 1 Complete Tidewater 15' OM-88 Complete Tidewater 15' OrB 81 Lincoln County portion only Tidewater 15' OrB 85 Lane County portion W. of 123O50' Tidewater 15' WRI 76-90 N. of Lincoln County line Tidewater 1-866 Complete Tidewater OF 72-35 1 Complete Tidewater OM-88 Complete Tidewater OrB 81 Complete Tidewater WRI 76-90 Complete Tiernan OM-186 Complete Tiernan OrB 85 Complete Tillamook 15' OF 94-2 1 Complete Tillamook 15' OM-42 Complete Tillamook 15' OrB 74 Complete Tillamook OF 94-21 Complete Oregon Geologic Map Index 61

Quad name Publication Scale Coverage

Tillamook OM-42 Complete Tillamook OrB 74 Complete Tillamook Head OM42 Complete Tillamook Head OrB 74 Complete Tillamook Head OrOGI 14 Complete Tiller 15' MF-1528 Complete Tiller 15' MF-2171 SW% Tiller 15' OrQM-2 Complete Tiller MF-1528 Complete Tiller OrQM-2 Complete Timber 15' OF 94-21 Complete Timber 15' OM42 Complete Timber 15' OrB 79 T.l N., R.6 W., secs. 1-19, 30-31 Timber 15' OrB 79 T.2 N., R.6 W., secs. 19-21, 26-36 Timber 15' OrB 79 T.l S.,R.6 W.,secs.6.7 Timber OF 94-21 Complete Timber OM42 Complete Tim Peak B 17414 Complete except northern edge Tim Peak B 1741-E T.21 S., R40 E. Tim Peak OrGMS-77 Complete Tin Can Ridge W 841 Complete Tincup Peak GP-197 Complete, aeromagnetic Tincup Peak MF-1528 Complete Tincup Peak OrB 40 Complete Tincup Peak OrB 88 Curry County portion only Tincup Peak OrB 93 Curry County portion only Tincup Peak W 1240-A Wilderness Area only Tioga OrB 80 Coos County portion only Toketee Falls 15' 1-1891 Complete, except for NW% Toketee Falls 1-1891 Complete, except for NW% Toledo 15' B 1395-F T. 11 S., R. 11 W.,secs. 23-26, 35-36 Toledo 15' GP38 1 Complete, aeromagnetic Toledo 15' 1-867 Complete Toledo 15' OF 72-352 Complete Toledo 15' OM-88 Complete Toledo 15' OrB 81 Complete Toledo 15' WRI 76-90 Complete Toledo North GP-48 1 Complete, aeromagnetic Toledo North 1-867 Complete Toledo North OF 72-352 Complete Toledo North OM-88 Complete Toledo North OrB 8 1 Complete Toledo North WRI 76-90 Complete Toledo South B 1395-F T.11 S., R.ll W.,secs. 23-26, 35-36 Toledo South

Quad name Publication Scale Coverage

Toney Butte 1-872 NW% Toney Butte OrB 72 Complete Trail 15' MF-1528 Complete Trail 15' MF-2171 NW% Trail 15' OrB 94 S. of 42'39' Trail 15' OrGMS-52 SE% Trail 15' OrGMS-70 SW% Trail 15' OffiMS-73 NW% Trail 15' OrQM-2 Complete Trail MF-1528 Complete Trail OrB 94 SE% Trail OrQM-2 Complete Trail Butte OF 80-444 N. 113 Trail Butte OM-204 Complete Trail Butte OrB 80 Coos County portion only Trail Butte OrB 87 Complete Trail Butte OrOGI 6 Complete Trail Butte WRI 83-4017 Douglas County portion only Trask OF 94-21 Complete Trask OM42 Complete Trask OrB 79 N. ,of 45O25' Trask Mountain OF 94-21 Complete Trask Mountain OM42 Complete Trenholm OM42 Complete Trenholm OrB 3 1 Complete Trenholm WRI 90-4196 Milton Creek basin area Triangle Lake OM- 186 Complete Trout Creek Butte MF-1952 Complete Trout Creek Butte OrSP 21 Complete Trout Creek Canyon OF 81-1092 NE% Trout Creek Canyon OF 83 -28 1 Complete Trout Meadows MF-1581-C North Fork John Day R. only Trout Meadows OrQM-8 Complete Tuff Butte P 383-B Complete Tumalo OrQM-1 Complete Tumalo Dam OffiMS-8 1 Complete Tumalo Dam OrQM- 1 Complete Tumalo Falls 1-1967 SW% Tumtum Lake B 93 1-5 Complete Tumtum Lake B 995-B W.% Tumtum Lake OF 82-1 127 Complete Turnbull Peak MF-2079 S. % Turner OrB 15 Complete Turner W 890 Complete Turner W 1997 N. of 44O49' Turner Creek OF 94-21 Complete Turner Creek OM42 Complete Twin Sisters OM- 186 Complete Twin Sisters WRI 83-4017 Complete Twin Springs OrGMS-2 Complete Twin Springs OrGMS-77 Complete Tyee 15' WRI 74-32 S. of 43O22', E. of 123O35' Oregon Geologic Map Index 63

Quad name Publication Scale Coverage

Tyee Mountain GF-49 Complete Tyee Mountain WRI 74-32 Complete Tygh valley 1-556 Complete Umatilla HA-387 Oregon portion only Umatilla W 1620 Oregon portion only Union HA-242 E.portion of secs. 1,12,13, T.5 S.,R39 E. Union W 1597 Complete Union Creek MF-1528 Complete Union Peak MF-1528 Complete Union Point OrB 84 Lim County portion only Unity OQM-4 Complete Unity Reservoir OQM-8 Complete Upper Soda OrB 84 T. 12 S., R4E., secs. 25-36 V Lake B 995-B E. % Vale East OrGMS-2 Complete Vale East OrGMS-2 1 Complete Vale East OffiMS-77 Complete Vale East OrGwR 34 Lowland areas only Vale West OffiMS-2 Complete Vale West OffiMS-77 Complete Vale West OrGWR 34 Malheur R valley, E. of R45 E. Valsetz 15' OrB 35 Complete Valsetz OrB 35 Complete Van 15' MF-1237 SW%, Pine Creek area Van Horn Basin B 931-J E. of 118'40' Van Horn Basin B 995-B E.%, T.40 S., R34 E. Van Horn Basin B 995-B T.40 S., R. 35 E. Vancouver B 1119 Complete Vancouver GQ-104 Complete Vancouver OrQM-9 Oregon portion only Vancouver WRI 90-4 196 Complete Vaughn Well P 383-B Complete Venator 15' W 841 W. of 118'20' Venator W 841 W. of 118'20' Veneta OM-1 10 Complete Veneta W 890 Complete Veneta W 2018 Complete Vernonia 15' OM42 Complete Vernonia 15' OroGI 5 Complete Vernonia OM-42 Complete Vernonia OrOGI 5 Complete Vey Ranch HA-3 87 Complete Vey Ranch W 1620 Complete Vinegar Hill OrB 39 Complete Vinegar Hill OrGMS-29 Complete Vinemaple OM42 Complete Vinemaple OrB 79 Complete Vinemaple OrOGI 14 Complete Vines Hill OrGMS-2 Complete Vines Hill OffiMS-63 Complete Vines Hill OrGMS-77 Complete Vinson W 1620 Complete Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Virtue Flat B 879 Complete Virtue Flat HA-242 All except secs. 19-39, T.9 S., R41 Virtue Flat 0077-5 Complete Waldo Lake 15' 1-1891 Complete Waldo Lake 15' OF 83-661 Wilderness Area only Waldo Lake 15' OrSP 15 Complete Waldo Lake 1-1891 Complete Waldo Lake OrSP 15 Complete Waldo Mountain 1-1891 Complete Waldport 15' B 1395-F Alsea Bay area Waldport 15' 1-866 Complete Waldport 15' OF 72-3 5 1 Complete Waldport 15' OM-88 Complete Waldport 15' OrB 81 Lincoln County portion only Waldport 15' OrB 85 Lane County portion only Waldport 15' WRI 76-90 Lincoln County portion only Waldport B 1395-F Alsea Bay area Waldport 1-866 Complete Waldport OF 72-3 5 1 Complete Waldport OM-88 Complete Waldport OrB 81 Complete Waldport WRI 76-90 Complete Wall Rock Springs OrGMS-78 Complete Walton OM- 186 Complete Wamic 1-556 Complete Wanoga Butte I- 1967 W. % Wapinitia 1-556 Complete Wapinitia WRI 76-26 Warm Springs Indian Reservation only Wapshilla Creek OF 78-805 Oregon portion only Wapshilla Creek OrGMS-6 Oregon portion only Ward Butte HA-387 Complete Ward Butte W 1620 Complete warm Springs 1-555 Complete warm Springs WRI 76-26 Complete Warm Springs Butte W 841 Complete Warner Mountain 1-1891 Complete Warnicke Creek OrB 35 Complete Warrenton OM42 Complete Warrenton OrB 74 Complete Warrenton OrOGI 11 Complete Warrenton W 1899-A Complete Wasco 15' OrB 91 T.1 N., R.17 W., secs. 4-9 Wasco 15' OrB 91 T.2 N., R.17 W., secs. 4-9, 16-21 Wasco 15' OrB 91 T.2 N., R. 17 W., secs. 28-33 Wasco 15' OrB 91 T.3 N., R.17 W., secs. 26, 3 1-33 Wasco OrB 91 NW %, Oregon portion Washougal B 1119 Complete Washougal OIQM-9 Oregon portion only Washougal WRI 90-4196 Complete Waterloo OrB 84 Complete Waterman W 1620 Oregon portion only Weaver Lake W 841 Complete 2/16/95 Oregon Geologic Map Index 65

Ouad name Publication Scale Coverage

Welch Butte OF 83660 Roadless Area only Well Spring HA-3 87 Complete Wenaha Forks MF-1536 Wilderness Area only Wenaha Forks OF 83-374 Complete West Myrtle Butte 15' MF-320 Complete West Myrtle Butte MF-320 Complete West of Paterson HA-3 87 Oregon portion only Westfall OffiMS-7 1 Complete Westfall OrGMS-77 Complete Westfall Butte 15' B 1741-E S. of Malheur R, E. of 117O5 Westfall Butte 15' OffiMS-77 Complete Westfall Butte OrGMS-77 Complete Westfir East 1-1891 Complete Weston Mountain WRI 77-3 Umatilla Indian Reservation only Wheeler Point 1-872 Complete Whetstone Point OrQM-2 Complete Whistler Point 1-543 Complete Whistler Point OIQM-7 Complete White Monument OF 78-805 Complete White Monument OrGMS-6 Oregon portion only White Rock GF-49 Complete Whte Rock WRI 79-8 S. of 43'05' Whte Salmon 15' OrB 91 Oregon portion only Whlte Salmon 15' OrGWR 33 T.2 N., R11 E., secs. 1-2, 11-14 White Salmon 15' OrGWR 33 T.2 N., R11 E., secs. 23-26, 35-36 White Salmon 15' OrGWR 33 T.2 N., R. 12 E., secs. 1-9, 16-22,28 Whlte Salmon OrB 91 Oregon portion only Whte Salmon OrGWR 33 T.2 N., R.ll E., secs. 1-2, 11-14, 23 Whitehorse Butte MF-1926 Owyhee Canyon area Whitehorse Ranch OF 81-1092 SW% Whtehorse Ranch OF 83-284 Complete Whitewater River 15' B 1230-D Wilderness Area only Whitewater River 15' WRI 76-26 Warm Springs Indian Reservation only Whitney OIQM-8 Complete Wickiup Mountain OM-42 Complete Wickiup Mountain OrB 79 E. of 123O36' Wickiup Mountain OrOGI 14 Complete Wildcat Mountain OF 80-1049 N. of 45017'30N Wildcat Mountain OrGWR 29 N. of 15O17'30" Wilderville GP-197 W. of 123'25', aeromagnetic Wilderville HA380 Complete Wilde~lle MF-1528 Complete Wilde~lle OrB 100 Complete Wilderville OrQM-3 Complete Wildhorse Lake MF-1876 Wilderness Area only Wildhorse Lake MF-1915 Complete Wilhoit OrGMS-32 Complete Wilhoit W 1997 Complete Willamette Pass 1-1891 Complete Willamette Pass OF 83-66 1 Wilderness Area only Willamette Pass OrSP 15 Complete Williams MF-1528 Complete Oregon Geologic Map Index 2/16/95

Quad name Publication Scale Coverage

Williams OrB 100 Complete Williams OrQM-3 Complete Williams Prairie OrQM-7 Complete Willow Lake MF-1528 Complete Willowcreek OrGWR 34 Willow Creek valley, E. edge of R45 E. Willowdale 15' B 1161-D T.9 S., Rs.15,16 E. Willowdale 15' 1-872 Complete except NW% Willowdale B 1161-D T.9 S., Rs.15,16 E. Willowdale 1-872 Complete Wimer 15' GF-218 Complete Wimer 15' MF-848 Complete Wimer 15' MF-1528 Complete Wimer 15' MF-2171 Complete except extreme NW,SE, SW Wimer 15' OrB 94 SW% Wimer GF-2 18 Complete Wimer MF-848 Complete Wimer MF-1528 Complete Wimer MF-2171 E. 113 Wimer OrB 94 Complete Winchester GF-49 Complete Winchester WRI 74-32 Complete Winchester Bay OF 80-444 Complete Winchester Bay OM-204 Complete Winchester Bay OrB 87 Complete Winchester Bay OrOGI 6 Complete Winchester Bay WRI 83-4017 Complete Windy Peak OM- 186 Complete Windy Point OF 89-212 Complete Wingville B 879 Complete Wingvllle HA-242 Complete Winston GF-19 Complete Winston WRI 77-28 Complete Winston WRI 79-8 T.29 S., R6 W. Wishram 15' OrB 91 Sherman County, T.2 N., R 16 E. Wishram 15' OrB 9 1 Wasco County portion Wishram OrB 91 Complete Wolf Creek OF 78-805 Oregon portion only Wolf Creek OrGMS-6 Oregon portion only Wolf Run 1-556 Complete Wolfinger Butte GQ-548 Complete Wolfinger Butte MF-50 Complete Woodburn W 890 Complete Woodbum W 1833 Complete Woods Point OF 94-21 Complete Woods Point OM42 Complete Woods Point OrB 79 T.l N., R.6 W., secs. 1-19, 30-31 Wrangle Butte OrGMS-78 Complete Wrangle Butte 010-92-15 Complete Wren GP-48 1 Complete, aeromagnetic Wren OM-150 Complete Wren OrB 98 Complete Yachats 1-866 Complete 2/16/95 Oregon Geologic Map Index 67

Quad name Publication Scale Coverage

Yachats OF 72-3 5 1 Complete Yachats OM-88 Complete Yachats OrB 81 Lincoln County portion only Yachats OrB 85 Lane County portion only Y achats WRI 76-90 Lincoln County portion only Yamhill 15' OM-42 Complete Yamhill 15' OrB 60 Complete Yaquina 15' B 1395-F T.11 S.,R11 W., secs. 22,27,34 Yaquina 15' GP-48 1 Complete, aeromagnetic Yaquina 15' 1-867 Complete Yaquina 15' OF 72-352 Complete Yaquina 15' OM-88 Complete Yaquina 15' OrB 81 Complete Yaquina 15' WRI 76-90 Complete Yellow Butte B 1122-D Complete Yellow Butte WRI 76-105 E. of 123O28' Yellowstone Mountain OrB 84 S. of 44'33'

Yoder W1997 , Complete Yoncalla B 1122-D Complete Yoncalla WRI 76-105 Complete York Butte GP-197 Complete, aeromagnetic York Butte MF-1240-A Wilderness Area only York Butte MF-1528 Complete York Butte OrB 40 Complete York Butte OrB 100 Complete Zumwalt OrGMS-6 Complete