Geologic Map of Washington State GEOLOGIC MAP GM-53 by J

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WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES Geologic Map of Washington State GEOLOGIC MAP GM-53 by J. Eric Schuster Key to Geologic Units Division of Geology and Earth Resources 2005 Ron Teissere - State Geologist Qgd 117° Unconsolidated Sediments 118° ‡mt 49° ƒms ‡mt ƒmv Ti 123° ƒms ƒ‡u ƒc ƒc ƒmv 49° 122° ƒog ƒam ƒmv Ti ‡ms ‡gnQgd ƒ‡hm ƒ‡mt ‡ms ƒi ƒ‡mt ƒam Ti Qd Holocene dune sand Qf Pleistocene outburst- S ƒ‡mt ‡i ‡i Qgd Qa 119° Qgd pŒmv Qgd Blaine ‡mv ‡i ‡gn TKgn Qa Qgd CANADA Qgd ƒmt Ti Qd ƒog Big Washington's Geological Survey Since 1890 T Qa Boundary 121° 120° Laurier Boundary ‡pŒms Gypsy flood deposits Sumas ‡mt ƒi Ferry Danville Tv R Point Bay 547 Tvt Tvt Ti Osoyoos Qgd Ti ‡ms Tv Peak ‡gn Qls ƒv ƒc ƒ‡u ƒ‡u ‡ms Sheepƒmv Creek Abercrombie A Roberts Qgd Qa ‡mv ‡ms Ross ƒ‡am USA ƒmt ƒms Qa River Tv 546 Tc Qad Cathedral ƒ‡hm ƒ‡u ƒi Lake Tv ƒc Mountain (7309) I Lynden ƒ‡mt ƒ‡mt Lake River Peak Ti ƒam ƒ‡hm 395 Ti T 5 ‡i Qa ƒmi ƒmv Qgd ƒ‡u Togo (7308) Tvt Ti ƒmv (8601) Qa River rt ‡ms Mount ƒi Tvt Mountain Ti ƒi Northpo O Birch Nooksack Redoubt ƒ‡u ƒi Tvt ƒmt Ti ‡ms Everson (6148) Tvt Deep ‡pŒms Qa Quaternary alluvium Qgd Pleistocene F Bay ƒms ‡gn ƒms ‡mt Ti (8956)Qad Qls ƒm Qa Tv Tv Nooksack 542 Tc Oroville Ket ƒ‡u ƒms ‡mv Creek ‡mv ƒi ‡ms Tvt pŒms pŒi continental glacial G 9 ƒ‡u Qad Qls Creek tle Ti Qgd 548 Tv ƒ‡u Tv ƒms Metaline Falls Qls Qls Palmer ƒgn Ket Qgd E 544 ‡gn North Fork ƒi Qls ƒi ƒms Creek drift O River Tc ƒmv ayten ƒi Lake ƒi Tv ƒog Curlew Qgd Tvt TKi Qf pŒms Tc Tc Qa ƒ‡hm tle Qgd Qa Tv ƒi Tvt ‡mt Metaline Sullivan R Tc ‡mv ƒms Pas ƒog TKi North Qgd G ‡ms ‡ms ƒi 97 21 Ti ‡pŒms Ferndale 539 ‡mt Qls Qv Myers ƒ‡hm ColumbiaQf I Ti ƒ‡hm ƒmv ‡ms ƒgn For Creek A Qa Qls Lak Toroda k Qgd Qgd Qls Quaternary mass- Qad Pleistocene alpine Ti ƒi Sullivan N S W H A T C O M Qvt Mount Mount ‡ms Qgd ƒ‡hm Qgd e ƒi ƒi ƒgn Tvt River Lake I Patos Qa Qgd 542 Shuksan Qad Lago Loomis wasting deposits glacial drift Deming Qvt ƒ‡mt Qad Tvt Qa ƒmv ƒ‡hm ƒmv ƒi Is ‡mv (9127) ƒc (8745) ƒv Creek TKi Tv Tc A pŒmv Qls Ti Tvt Mount Qgd ‡mv Tvt Qa Fury ƒc ƒog Creek pŒi Tc ‡gn Ti Mount E T Mount ƒi Creek Tc

(8300) ƒv ƒog Tc Bonaparte G Ti Lummi Baker River TKgn Curlew er Ti Ione Jack d N Matia Qgd Qv Qad (7258) l pŒi Sucia Island Qad River ƒi Lake ƒ‡mt N ƒn 9 Mtn ƒi ƒ‡hm Ti ƒ‡mt South u Is (10,785) Eightmile Fork o 25 Ql Quaternary loess Is ƒmt Bellingham Tv Qa A pŒmv Qgd ƒn Tc Qvt Qls River ƒmi ƒ‡hm B ‡pŒms Qgd U Waldron Tc Qls (9066) Tv ‡ms Qa t Tvt R ƒn Eastsound Tc Harts ƒm Tvt ‡ms Qgd Qls 31 ƒi Island Los ƒi Wauconda ‡ms O SCALE 1:500 000 ƒn ‡mt ‡ms Baker Baker Qa Sinlahekin ƒmt pŒms ƒn ƒ‡mt TKi Pass Tv TKi Copper Ti Qf pŒi ‡i Lake Diablo Creek (6198) Robinson ) ( Summit ƒ‡hm 10 0 10 20 30 40 MILES Stuart Lake ‡gn ƒ‡mt Tc TKog Diablo ƒ‡u ƒ‡hm Tonasket (4310) Ti Butte pŒmv pŒms M Island Qgd ‡mt ‡gn ) ( Mtn Qf Qd Qgd Mount ƒms Qgd 20 Canyon (8726) Ti ƒms Tvt ƒmt ƒ‡mt Tvt (7135) ƒog ƒam ‡ms Constitution Whatcom Qa Lake ƒms Creek Qls ƒn ‡mv ‡i ‡gn ƒc Creek ƒi ƒn Orcas (2407) ƒmt Tc South ƒmv Newhalem ƒ‡hm ƒc Tc 20 ƒ‡hm Qgd 10 0 10 20 30 40 50 KILOMETERS ƒn ‡i ƒms ‡mv ‡i Bonaparteƒog Tc ‡i Qv Ti Granite Tiffany Qls Marcus ‡mv Island ƒms ƒog Pen Sedimentary Rocks and Deposits ƒms ƒ‡u Tv ƒi Qgd TKi ƒ‡hm Sinclair ƒmt Mountain Qa ƒgn Kettle Ti ƒi Chewuch Tc Sherman ‡i Qad ƒ‡hm Qa ƒms (8242) ƒi Qa Qgd River d S A N Is ‡i Qgd Qgd ƒ‡hm Republic Pass ƒam Falls 1 inch on the map represents approximately 8 miles on the ground. ‡i ƒ‡mt Qa River ƒv ƒ‡hm QTc Quaternary–Tertiary Tn Tertiary nearshore Roche ƒmt Methow ƒ‡mt (5575)) ( ƒmt ƒmtCreek Qls Creek ƒi Strait ƒms Samish Qls ƒms ƒc O K A N O G A N Harbor ƒ‡u Fork RiverQad Qad ƒi Tv Qgd Qgd Mill Old Dominion 20 continental sedimentary rocks 1 centimeter on the map represents 5 kilometers on the ground. ‡i ‡i TKi Ti Qa ƒi P E N D O R E I L L E ‡ms Shaw Bay ƒ‡u Qa R Tv ‡pŒms Peak North ƒ‡u ƒmv ƒmv ƒms ƒ‡mt ƒog Qgd Snow 20 sedimentary rocks Blakely ƒmv E Island ƒ‡u ƒ‡u Qls ƒmv ‡ms ‡ms Tv CreekQls (5773) Baldy Friday Island Lake Riverƒgn TKi Peak Sherman Tvt Elevations are in feet. San ƒ‡u Qls ƒi Tvt ƒog Tv V (6173) and deposits Shannon (7103) I Oreille Haro Strait ƒms Harbor Qgd ƒ‡u Qad Mazama ƒi Guemes Mount A N G E Conconully ƒ‡hm Colville ƒi Qgd ‡ms ‡i R Juan ƒ‡u ƒmt ƒ‡hm ƒms Tunk Ti J U A N ƒm Cypress Island 11 Concrete ‡ms ƒhm Logan 20 Mountain Ti Oreille ‡pŒms ‡ms ƒi 48°30¢ Tc Tertiary continental Lyman ƒi Ti ƒc ƒm ƒog Conconully ƒn Mesozoic nearshore

Qgd Island Sedro (9087) ƒi ƒms (6054) ƒ‡mt ‡mv pŒhm Qgd Decatur ( ) ‡mv Island Qgd Woolley 20 Qa Qgd R Washington ƒi Lake ƒ‡hm Tu n Qgd TKi sedimentary rocks 48°30¢ Is ƒ‡u Anacortes Qa Qvt Tc Marblemount Rainy Pass ƒmi k ƒog ƒ‡hm ƒi ƒi sedimentary rocks ‡ms Lopez ‡i ‡mv Pass Qgd S T E V E N S Hamilton (4855)) (ƒmt Creek ƒ‡hm pŒms‡ms Qgd pŒi Cascade ƒog Ti (5477) Qgd tz ƒi Qls Riverside Creek Qls River ‡mt ‡ms ƒog Qgd ‡pŒms Pen tz Island ƒi Padilla Burlington Tc River ƒ‡u Qa ƒ‡hm d Bay Skagit ƒm ƒam Little tz Qf Cape ƒi ƒm ƒv Qgd Skagit ƒi ƒmt ƒgn Qgd pŒms ƒmv S K A G I T ‡i Qa Cascade Stehe ƒmv TKi Flattery ƒc ƒ‡u E Tc TKog Colville395 ƒi pŒmv Tc Calispell Rosario Tc Pass (5400) ƒmv Fidalgo L ƒc Mesozoic continental ) ( Winthrop Omak Ti Peak Tm Tertiary marine Neah Bay Is kin Qgd t Qls Qad Mountain T ‡ms K (6855) ‡pŒms Tm 538 Los Hall sedimentary rocks CANADA Qvt ƒ‡am Qls ƒhm Qls Qd T sedimentary rocks ƒv Qa ƒ‡u ƒmv Sauk ƒi (5749) TKi ‡pŒms R ƒms ƒ‡u ƒ‡u ƒv ƒc Qgd E Qf Qa ƒms Qgd ƒms ƒms Qls ƒc Omak ƒ‡hm Grizzly I Mount Finney Creek ‡i ƒog KMountain Tc Tv ƒms La Conner ƒ‡hm ƒog Qf K 20 ƒms Qad Qad Tv Ti (6381) 112 Qd Vernon Tc ƒ‡hm Ti ƒms ƒi Qf USA 124° Qgd ƒmv ƒi ƒi ƒc ) ( ƒi Tvt ‡i pŒmv L Tvt ƒ‡u ƒmv Tw i ƒ‡hm ‡mv ‡ms River Moses Tv E Qgd pŒi Qvt ƒi ƒog sp ƒi Qgd Mountain ƒ‡hm Creek Tv ƒm Mesozoic marine S Tv ƒ‡hm 20 Loup Loup TKi TKi ƒog ‡ms S Qf Tv Tm T ƒmv Tc Qgd ƒmv Tc River Twisp Summit (6774) pŒms Cusick River Bead R ‡mv Qgd Lake sedimentary rocks Qa Whidbey Lake Ti TKi (4020) ƒmi Omak Creek A Cava Tv Ti Okanogan ‡mv Qgd Tvt Clallam I 534 naugh Qls ƒ‡hm ƒi F E R R Y Qa T ‡i Tc ƒmv Qa ƒ‡hm ƒv TKi tz Qgd Inchelium Gifford ‡pŒms Chewelah Tc Tv ƒv Bay OF ƒi ‡gn ƒi Tc ƒog Sanpoil Chewelah ƒi Tvc Oak Tn ƒ‡u ƒ‡u ƒ‡u ƒog Qgd Qgd Mountain Qf River JU ‡ms ƒog Qa ‡ms A Harbor Qls ƒhm Stehekin tz ƒ‡hm Omak pŒi (5773) Tc Tm N A Qd ƒmt Stillaguamish Qgd Disautel ƒi Qf ƒi tz Qf Tn C Qgd ‡i Qa Qgd Qls ƒmt Qgd Lake Summit ) ( ƒ‡u River ‡pŒms pŒhm D E U I S L A N D 5 ƒi ƒ‡u Ti Tw in TKi pŒmv ‡ms Volcanic Rocks and Deposits F ƒ‡mt Fork Suiattle tz (3252) pŒmv pŒms Hoko 20 530 Qa ‡i Ti ƒhm 153 Tvcr Lakes Tvt Qa 155 Qf pŒi Qls Stanwood Qvt Darrington River Qad ƒi ƒog Okanogan Tv 21 Tv North ƒi Bonanza Ti Ti River ƒ‡u Qv Quaternary volcanic Tv Tertiary volcanic Coupeville Stillaguamis532 9 ƒmt ƒ‡mt Peak 97 ƒmi tz c Camano Qgd ƒms tz S TKi Qgd River ƒ‡hm (9511) A ƒv Owhi TKi ‡mv rocks rocks, Crescent Qa W Qd ƒ‡u ƒi Qf Newport Qa Saratoga ƒms ƒgn ƒhm Qa Qgd ƒmi Lake River ‡ms Ti Qgd Tvt Dungeness Spit Island h ƒi Qls T Qls 112 Qa Tvc Qgd ƒ‡mt ‡i ƒgn ƒog TKog O Qa Waitts Formation Qa River Ti O Gold Cr Qls tz Admiralty Qad Qa Qgd ‡ms a i n Lake Qgd Lucerne T Qf Qa Qgd Qgd 20 ƒog Qvt ƒ‡hm Tvt pŒi 113 Tm H ƒmi Lake Arlington ‡i Qgd ƒmv Holden eek Methow Qa ƒ‡u ‡pŒms pŒi Tm Qgd Port Qa Qf 211 TKi Ozette South ƒ‡am ƒ‡u White Ti ƒm ƒ‡hm TKi ƒi Tv pŒms Ti Tv Qd 531 Qls Qad ƒ‡hm Nespelem Ti Tv Qa Diamond QTv Quaternary–Tertiary ƒv Mesozoic volcanic Tm Qgd Angeles Qls ƒ‡mt Ti Tvt Chuck Qls ‡ms Deer Ql Qgd Port ƒi Qd Qf Qf Lake volcanic rocks rocks Tv River Tc ‡ms Qv ƒmt Nespelem Qf Lake River ƒog Qa Tv Tvc Qls Lake Tv Townsend Tn ƒ‡u Qvt ƒi Qa Qa Marrowstone Glacier Tv Qgd N Lake Crescent River Qv R Qa Pas ƒi Qf Ti in Qa y M o u n t pŒhm Sequim Qgd For S N O H O M I S H Peak ID Ti Qf e Qgd 101 20 Island G ƒog Brewster Qls Ql m Qgd Qls sage Qgd k (10,541) Qls ƒi E i Tv Qf River ƒmi Buffalo le ƒi Tvt 292 Ql Tm Sol Tm Tv Qls Creek Tc Springdale Granite ƒms Qvt Pyramid Qa Rufus TKi Lake Keller ‡pŒms ƒi 525 Stillaguamish Qv Mtn 173 ƒ‡hm TKi Ti pŒms Qa ‡ms Tvcr Tertiary volcanic Qvt Quaternary fragmental 48° Calawah Tm Falls Ti Woods Columbia Tvcr Loon ‡pŒms Eloika ƒi River Tvc Qls ƒms Pateros Lake Qgd Qf Qf ‡pŒms Lake 2 rocks, Columbia volcanic rocks and O L Y M P I C Elwah M O U N T Qf Langley Ti River Qgd ƒi Qad (8245) Ti ‡ms Lake ƒog Fk Tv 116 Marysville Qgd Tc Qls Qgd Tv ƒi Lake H u c k l e b e r r Qf 48° Qa Tv 92 ƒhm Qls Tvcr River TKi Qgd Qa River Basalt Group deposits (includes Qls c Inlet Qgd ƒms Tc Tv ƒi Qa N Duc Qad Island Lake ƒi Ti Qa ƒ‡hm ƒ‡hm Qf cr Qd Qls Tm Tvt Tc ƒhm Chelan Qgd RiverQf lahars) S Fk Tm Ti Stevens ƒ‡u Qa Qad ƒ‡hm ƒmi ƒi Elmer Tn 110 Forks 19 Ti 97 Lake Qgd ‡ms 25 Tv Qgd 395

Qa Tm Tv Qgd Tvc Clinton Lake Qgd ƒog Qv C A S C A D E C ƒ‡hm Qgd City Ti ‡ms 231 TKi

Calawah Qa Qf Chiwawa C H E L A N Bridgeport Qgd Tvcr Ql Deer Park Tv Tertiary volcanic Tvt Tertiary fragmental River Qa Stevens I ƒgn Tv H ƒmi Pateros Ql ‡ms TKi Qls Qf Tm River ƒmt E 174 Ql Tvcr Ti Qf Mount La Push EVERETT Snoho Tn ƒmv Monte Qv L Qls Tvcr rocks volcanic rocks Qgd Spada Tvt E Qgd A Qgd Coulee Dam Qf Tvt Spokane Qad C L A L L A M Cristo ƒi Ti N Qls

River Tvc N Qls Grand Coulee Qf Fra (5867) Lake sevelt Peak Ti Tc Qls T TKi Qf ƒ‡hm Qls Qa Mukilteo mish ƒi Sultan Tv (7233) Qa I A ƒmi ƒog 17 Qls Ql Tn ƒhm Qls Tc East pŒms Ql Qf nklin ‡ms Qd Tc Qls Qls Longfellow ƒms T Foster Qls Qd Tm Tv Qgd Snohomish Tvt M Roo ƒi Bogachiel River c Qad Qls Mountain White Qf Creek Electric Ti ƒmi Ql Spokane Qls 104 Qa River M O Qf Qls ‡pŒms 525 River (6577) Qa Tv ƒog Dungeness Tc Qf City cr Tvt Wellpinit ƒgn ƒhm Qa ƒi O U Spokane River U N Ti Qa TKi TKi Qls Intrusive Rocks 101 Qgd Tn Qls ƒmi Qa e Qf Qad Tv 96 L N T k Qls Ql ƒi Qls Qf Ti i ƒmi a Qf Qf Tm Hoh Puget 5 Monroe ƒhm ttl ƒog T A 150 Qd Qd ‡pŒms Qgd e River Entiat Ti ƒog L Sultan A Qf Qls I TKi D Tv ƒi 291 Qa TKi Qi Quaternary intrusive ƒi Mesozoic intrusive Mount Qls Qad Port Mill 2 Gold W ƒi I N Qgd Qd Ql Ti North Fork s Qd Mount Qa e N S Tc Olympus Tv n Qgd k ƒmi Qa Qad Deception Quilcene Gamble Creek Bar atc ƒ‡hm Tvcr Qf Long ƒi rocks rocks (7969) Lynnwood 9 Skykomish hee S Chelan Qgd n 174 Qf R a Tvcr Qf Little Newman (7788) ƒms Qgd Index Ti Qa Tv Lake Qa River ƒgn B Qd River Qls Qf 206 Kingston 522 Snoqua ƒi Qls ƒog ƒmi Mansfield Lake Tm Tv Qad Mad 971 Hawk Qa 3 Mountlake Ti ƒmt Qa Ti Qa Ql Edmonds Tv ƒgn Ql Qf ƒi Qa 307 Qf ƒhm Lake Tvcr TKi Qa Tm River Qls 101 Terrace lmie Ql ƒi Qls Qls Dosewallips Wenatchee Qls Creston Qf TKi pŒhm Qls Qa Ql Qd QTi Quaternary–Tertiary ‡i Paleozoic intrusive Qa Tm Mount Shoreline Bothell Mount South F ƒgn Ti COULEE Spokane Qls Qgd ƒms Tvt 207 ‡pŒms Anderson River Poulsbo Woodinville Qls Index Qa Tvt Tc intrusive rocks rocks Lake (5979) ) ( 97 Wilbur TKi Qls Tc Tv Queets Kenmore ork Qa Tc Qa Qf Creek Qf (7321) Suquamish Forest Duvall Qf Tc Qad Stevens River ƒi Qd D O U G L A S Tvcr Tm 202 Qls Qf ƒog River Qgd Park Qgd Tv Qls Pass Qls Entiat Qf Qf Ql Qa

J E F F Qa (4061) Ql Qf Deep E R S O N Duckabush South Fork ƒi River Lake Tc Tvcr Creek 25 Ql A I 5 Qa I 2 Tvcr SPOKANE 90 Tv Kirkland Qls 172 Qls Almira Reardan Qls Millwood Qf River Qa Qgd n Skykomish ƒ‡hm Qls Qd N S Bainbridge o ƒhm Liberty Ti Tertiary intrusive pŒi Precambrian intrusive K I T S A P t 203 River To l t Reservoir ƒog Jameson 2 ts Qls River 305 g Redmond River Qf Airway Heigh Island n Lake Qa Qad i t Lake Hartline Creek 2 Tc Tvcr Clearwater h River ƒ‡u Entiat rocks rocks 303 Qgd s Tn Ti Tv Snowgrass Qgd Qa a 405 mie Ql Qa Qf Qf Kalaloch Tvc To l Mountain Tc Davenport Tm W Carnation Waterville Qa pŒms Ql Bainbri 520 Snoqual ƒms (8050) ƒ‡u Qa Qf dge e Qf TKi Qls k ƒmt ƒhm ƒgn O L N Qa a Sammamish 202 Wen L I N C pŒms Medical Qa Qad Qad Island Tc L K I N G Tv Tc Qls Tv Qf Qd Ti 902 S P O K A N E Tm BELL Qa cr Qa Lake pŒhm EVUE Fork SEA ƒi atchee 2 Ql TKi Qls Tm TTLE Qf Qls Ql TKi Tc TKi Tertiary–Cretaceous ƒ‡u Mesozoic–Paleozoic Lake Icicle Qls Ti Coulee City Qa Ti Fall Qgd Sammam Creek Ql Creek intrusive rocks ultramafic rocks Tv 90 ish City Qad Mount ƒ‡u ƒgn 97A Qf River Tm Tn Douglas son Mercer Tv Daniel ƒ‡u Leavenworth Qf Qf Bremerton Tn Ti Tv Ql Tvcr GRAND Tvcr Wil 47°30¢ North ƒms Blue Tv Sound Tv (7960) Tm c Is Newcastle Tvt Qls le Qa Lake Tv Tv Qa Tm Tv Port Midd Big Snow ƒms Tc ƒgn Ql pŒms pŒms 47°30¢ Qad 101 Qls Qls Creek River Ql 3 Issaquah Tm Snoqualmie Mountain Qa Qad ‡pŒms 27 Ql South l 2 Orchard Tc ƒi Qad Creek Cheney Tm Amanda Park 160 202 Qf ƒi (6680) Tc Qf Tc Lat Qgd 900 iwai Ql Qf Qf Metasedimentary and Metavolcanic Rocks Qgd Qa ƒmv ƒmv ƒ‡u Cashmere Qa Qf Ql ah Qa Lake Tvt Tvt Fork Tc ƒi Tc Harrington Creek Tv Lak For Qf Renton Qgd Tvt ƒmv Qad Qls Lenore Qa Cann Qa 231 904 e Cushman Qgd McCartney 278 Quinault k Skokomish Burien Qa North Bend Mount Ql Rockford d C a n a Belfair Ti Tc Ti Qf ƒms Mesozoic ƒ‡mt Mesozoic–Paleozoic Qls Tc 169 Tv ƒmt ƒ‡u Stuart 97 Lake Tm Qa 16 Qf ƒhm Ql Billy Clapp Creek Creek Qf Spangle Tukwila Qgd Tvt (9415) Qa Qf 28 Creek metasedimentary metasedimentary and lt Wynoochee 119 H o o Qgd SeaTac Tc Lake 21 Rock Qa River Qf Qgd Qa Qf RiverQls ƒms Qd Qa k rocks Tv Lake Vashon Normandy Qls Qf metavolcanic rocks Quinau Hoodsport 18 Tvt Snoqualmie Pass Qls Ti Qls COULEE Qf Fairfield Tn Tv Park Lake ƒms Qa Tv Cree c Tv Island Qa Maple (3022) ) ( Krupp Tvcr Cree cr 395 Tvcr c Yo u ngs Wenatchee 28 Wilson e 23 Ql Qa Qa Valley Cedar Tv W ƒmv East (Marlin) Lak Crab Des River Duck k Tah olah 106 Tv E Tvcr Soap Ql Creek Ql Qad 302 Kent Morse Elum N Wenatchee Qf Rock Crab ‡ms Paleozoic ‡mt Paleozoic Qls Moines A Lake Crab 195 Tm River Qls Lake T C 28 Island Soap Tv Qa Coal Qad Qls Maury 516 Ti H Qa cr Qf metasedimentary metasedimentary and Is Tc E 97 Tc Lake Waverly Qa 3 167 ‡mv Tc E Tv Covington Tc Ql Ql Ql rocks metavolcanic rocks 169 Qls Qa Keechelus Cle Tc Ql Qf Gig Qad ƒms Tc M MOSES Qf RiverTm Harbor Federal 18 Qls O Creek 109 Green Kachess Tv U Qa Sprague Qf Qa pŒms Qgd Qad ) ( Qls Pine Ruston Way Auburn Black Lake Lake Cle Elum Blewett N Ti 101 Qgd Ti T Tv Tv Ephrata Odessa Latah Qad Wynoochee Qls Diamond Lake Pass cr cr Tv Qa ‡pŒms Paleozoic– ƒmv Mesozoic River M A S O N Qgd Qa Tc Tv A Qa cr

Algona Qls (4102) I N Qls 282

Moclips Satsop Qf Mission Sprague Precambrian metavolcanic rocks 102 ( ) S Tc Qf 274 Matlock TACOMA Pacific Stampede Pass Tvt Peak Lake pŒhm Malden Rosalia Qgd Qls Hanson Qf Creek metasedimentary Qad Fircrest Qvt Qf Qgd (3700) Qls (6876) Qls Creek Tek oa QTc Fox Edgewood Reservoir Te a COULEE Qf River Qgd Harstine Milton Qa nawa Qf rocks Tm Is Fife Tvt Qls 903 Tc y Ql 27 Island Ti Tv Qa Rock 271 McNeil University Qa Tv River Tvcr Qa Qf Tvt Easton ƒms Roslyn Creek Lake pŒms Precambrian ‡mv Paleozoic G R A Y Shelton Is 5 Qgd Sumner Enumclaw River Ql Quincy 17 Ql Lamont pŒms S Place 164 Ti Qls Qf Fork White Qad River Lake Qad Yakima Qa Qf 283 Creek Tvc 7 metasedimentary metavolcanic rocks s Tm Steilacoom Qa Cle Elum Qf 90 Ql pŒms Qa Tapps 970 Ql Tm Puyallup 90 281 23 rocks Anderson Qvt Qf Qa 512 Bonney 410 Tv Qad Qls Moses Lake ROCKY Oakesdale Copalis Wishkah Island River Tv Tv 101 West Satsop Tvc Lakewood Qa cr Qa Qf Creek Beach c 162 Lake Buckley Cottonwood Farmington Swauk Ritzville Qa Qls ƒ‡hm Ti Creek Qa QTc H A k P I E R C E Qgd Qgd Tv Tvt G R A N T Qf ƒmt Mesozoic pŒmv Precambrian PACIFIC Humptulip R B O R South ƒog Tvt cr St John For 108 DuPont Prairi Qls Moses Lake Qa Orting e Wilkeson tz Ta n eum Creek River Tc Tc Tv Qf metasedimentary and metavolcanic rocks Tv cr Tc

k Qls 97 90 23 Ql metavolcanic rocks Qv ( ) k Creek Qad For Tc ƒ‡am Qf

East Olympia Tv Qa Tc Roc Steptoe Carbonado Coleman Cow pŒms 161 Qvt Tv Naches Little ƒms Qa 109 Qa Carbon George Ql Butte 8 McCleary Pass (4923) 10 Ql Tm K I T T I T A S U S E Garfield 47° Tvcr 510 Qad 410 Qa Naches ƒi Tc Qd (3612) Tm t ƒms 47° Elma 507 Qgd Tc Ti Qa Tvcr Metamorphic Rocks (Amphibolite Facies and Higher) Qvt Qf Qf O Ocean Lacey Puy Tvt South Qd Ql 21 Hoquiam 12 Qgd Wes Qad Qad Tc Tc Potholes Qf Tv Qa Shores Qa Tumwater Roy allup Qad Ti River Qls cr River GRAYS Qa Qa Qls Reservoir Qf A L ƒhm Mesozoic TKgn Tertiary–Cretaceous Aberdeen Montesano Hills Qls Tvcr Tc Ellensburg Qa Qgd River Qa Qgd River ouse Ql Lind P HARBOR Chehal Tv Tv Kittitas Qf heterogeneous gneiss Point Cosmopolis is c 7 Ti Qls For Qa LIND Pal 105 107 k F Tc 170 Brown Qls River 165 Tc Tvt Qv QTc Creek renchm Qa metamorphic rocks Tm Qvt Qls River an Warden M Hi COULEE Ql Westport Tvcr 702 QTv Qa a Vantage lls Endicott Qa Palouse Tv nas tash Ql 272 cr Tm Yel m Tv Ti Qls Ql Qa Qad River Cliffdell Ql T H U R S T O N Tvcr Tc A D A M S South ƒms ƒ‡hm Mesozoic–Paleozoic ƒgn Mesozoic gneiss Qgd Tv Tc River Kamiak Qls Black Qvt White W H I T M A N Tc 261 For Tv Qa Tv Royal City Tv Butte River Rainier Qa River Qi Qa Qa cr Wanapum 262 395 cr Ql Union Colfax heterogeneous OCEAN Tc Qv Qi American Bumping 26 Ti Lake Qd Qf Flat k (3641) Black River Naches Ql 507 Qad Tc Qa metamorphic rocks Ten ino Mount Ya k Tc Tv Tv North Deschutes ) ( Bumping Tc cr cr Qa Tv Nisqually Qvt Rainier Cayuse Chinook Tv QTc Qls Ql Qa c Qgd 5 Eatonville ) ( Ti Qf Tvcr Qf Tc 27 Qi Pass Lake ima Qls Qd Creek Ql ƒi Tm Oakville 12 Tm Tc (14,411) Pass Tvt Qa 26 Tvt Tv (5430) Umtanum Qa Qad Tv (4675) QTc Qa Albion Tvcr Tm Sk Tm Lower Crab Othello pŒhm Precambrian ‡gn Paleozoic gneiss ook Ti Tc La Crosse 26 Pal Bucoda um Qa Ti 410 ouse ch Qls Tvt Qad Qa Qa Qf Tn uc River Qv ƒog Creek ouse heterogeneous Mount Qls Qf Pal Tn Qv Qls 82 S A D D L E Qa Ql Qls 26 Tvcr Skookumchuck Tc M O U N T A I N S Qf Ql T H E 194 metamorphic rocks Tv Qls Alder Tv Qvt Tvt Ti Aix Qd Qls c Res Tv Wen Tc Tc Ql ervoir Lake Elbe Ti (7766) Qls 97 Pullman 105 Qls River Qvt Ql Hatton 270 as e Tc Washtucna 706 Tc Tvcr Tc Slop 21 Tv Ti Qa QTc Ql 17 Qd Tvc Ql k e Qf River ƒam Mesozoic amphibolite TKog Tertiary–Cretaceous Tok eland Raymond 7 Qad Qls ƒm Tvt Qd h l u Almota Tc E a 24 127 W Tn Qls River ƒmv QTc W orthogneiss Tn Centralia Tv ƒv River Naches Ridge Mattawa QTc Tvcr Tvcr Tv Tv ƒm ƒv Creek 821 Priest Ql e Bryan Qa G Lak I Tv Qf South For ƒi Tc cr Rapids Tc Tvcr Qf Qf WILL Qa L k Tv Tc Qa Ql APA Tm Tv Qa Tc Qa Qf 195 Leadbetter Qa Bend Tm L E W I S Qv Tc Lake Ql ƒms L Tvt Qf Qa Point Tvcr Tc N Qa Tieton Ql Selah Qf Qf ƒi A Tm Tc Qls Tc Tc Connell 12 River 260 Tvcr Qa Qa River NewaukumChehalis Tv QTc Deadman er ƒ‡am Mesozoic–Paleozoic ƒog Mesozoic orthogneiss P ƒog Creek Selah Low North Qls Tvt A Ti Tieton Qv Tc Qa Qd 261 ƒi QTv ) ( 12 A Qa Tc River Qa amphibolite Wil Tvcr Ti Qd Qd Kahlotus BAY lapa Tc Qls QTc Qls Creek Qls Qf Qf Creek k Tc Tv Cowiche River Tv 260 Tvcr Granite Tvc Qls Tc R White Rimrock cr Qf R For Ti ƒv Qls QTc QTc Tvt Chehalis Packwood Pass Lake k Qf Lake Tn Pe Ell k South (4500) ƒi Qls Ql Oysterville Napavine 508 Qls ƒv For Ql 263 Herbert Colton Tv River For Qa Qls Qad ƒm Qf River Lake cr South Yakima Columb Mesa G West Ql 6 Tm Mayfield Tv Ti Pac kwood QTi Qv Qa Snake ƒmi Mesozoic migmatite P A C I F I Lake Ti Qa ƒmv Qa Qls Qd Uniontown C Tvt Tvcr Qad Qv Lake Qa Tc Tc Qf Ql H Ti Tv Mossyrock Tvcr and mixed Tvt c 12 QTi Tvt Union Gap Moxee Tvcr Qf Qf 46°30¢ Ti I 122 Morton 12 Cowlitz Qad Qf ia Pat Ql 46°30¢ Tv L ƒog Creek aha metamorphic and Tv cr Randle 21 Tv South 24 cr Tvt L Riffe QTv QTi Qls Ahtanum Ql Qa Tc Starbuck Tv Tvt Tv Ql Tu c G A R F I E L D cr igneous rocks S Tvt Winlock Qad Qls annon Qf Tvt QTi QTi Tm QTi Tvt Qf F R A N K L I N Snake Tv Ti Ti Lake Tc Qls Ql Tvc Tn River Qa Qad Ti Qv Tv Ql Ql Creek Pomeroy Qa Tv cr Qf QTc Tvcr Qls QTc Tc QTc Qf River Qa Long River Gilbert QTc 12 Island Tvt 25 Peak Tvcr Qa 103 Tm Tm Tm Tvt 23 R Qf Qa 12 Tvt 505 (8184) Tc Qf attle Clarkston Other Geologic Units or Features Qls Toledo Qa Wapato snak Qa Tvcr Tn Tc River Qad e Qd Tvcr Naselle Tv Tvc Qls Tv Tv Tc Qa Tc Hills Ql Qf Long Tv Cispus QTi Y A K I M A 97 240 Qd M B I A Ql Qf Glaciers and ice fields Qa Qa C O L U Beach Vader Walupt Ql Qf Ql Qls Qa Tv Harrah Zillah 241 Ql River Qls Qa Lake Qf Qa Tc Asotin Tm Qa Tv Tc Qa Qf 4 Qls Qa River Lake Tvcr Ryderwood Green River 117° Ti 401 Tvcr Grays Qls Ti White Qls Sacajawea Qls Tv Tn Tv Qf Qf Tc Creek c Qls tle River Ti QTv Ql Toppenish Asotin Tm Ti Qvt 504 Tvt Swan Tvcr Ilwaco Tm River Ti Ql Granger Dayton QTc To u T Tv Qa Qf Tectonic zones; areas of intense cataclasis, 101 Tc Qls o Coldwater River Qf Sunnyside Qa tz Qvt u Tvt E Creek Prescott Cape 124° W A H K I A K U M tl Qv 223 West Qf 395 Eureka Disappointment Tvc Tv e North Lake Tc 124 Tv including mylonitization Castle 504 99 Qv Ql Qf Richland cr Qls Altoona an Qf Richland Waitsburg Tvt Tvcr Tm Silver Tv D Tvcr Ql Qd Qf River Qa Tm Rock M 23 penish 225 224 River Lak South Qad For k Qad Qa Ql Columbia Tn e tn 25 Qa To p 82 River ƒ‡mt Elochom BentonCity 182 Tvt Tv Qls A Tc Lambert conformal conic projection Tvcr Spirit Qls Tc 124 Qa A S O T I N North American Datum of 1983 Ti Range Lake Tv Qvt Grandview 12 W A L L A k Qls Ti Dike swarms; shown where dikes are too Cathla Signal Creek 12 Qls River met C O Qf For 5 W L I T Z For Qvt C Ql North k Peak Qls 240 Pasco numerous to show individually at map scale; Base map modified from Washington State Department of Natural Mount Qvt Qls Creek Qa Qls Qa Qls 4 Qls Cowlitz Tv Qv Tv Tvt Mount (5100) Qf Qf ƒi Resources, 2000, Major Public Lands of Washington: Washington 409 Qls Adams Qv Mabton Tv W A L L A ƒ‡mt labeled as to geologic unit QTc QTi Saint S Tvcr cr 90 Tv ima Tvcr ƒmt State Department of Natural Resources, 1 sheet, scale 1:750,000. Qi Ql Ql 22 cr Ya k Kennewick Qd Ql Hele chet ns Qi (12,276) 12 For Tv (8366) Anatone cr Qa 23 A Tc Prosser Qls Digital data provided by Donald W. Hiller, Engineering Division, Kelso Coweem Qa Qi k To u an River Klickitat Tvcr Qf Qa Dry Satus 397 Eruptive centers; volcanic vents of Quaternary to Resource Mapping Section Qvt South River Tv Qi QTi Tvt is Tvcr Qa B E N T O N Ql ƒ‡mt 129 Tc Longview C Qvt H E A V E N Qf Oregon MTNS Qa Miocene age, generally the same age and Digital cartography by J. Eric Schuster and Charles G. Caruthers Ti Qls Tc Tc Qa Qv Creek Lew 97 Ql Butte Qf Editing and production by Katherine M. Reed and Jaretta M. Roloff 123° Tv Tvt Tvcr Tvt H Qa Creek ƒms composition as the surrounding volcanic rocks Tv QTv E Ql I Lake Qf (6387) Qa Qv Qad Ql S 221 L 125 Qa Mill Tvcr Qa River Qv L Qf Creek Qf Qvt Qv R S 82 Wallula 90 O Tc ƒmt Ti Swift Tv Qls Dry Qls Qa H Qa QTc Quaternary to Mesozoic dikes; unlabeled dikes Kalama Reservoir Wal White College River ƒi Cougar Qls 395 Touchet 12 Walla Ronde ƒi Qls Tv la Place are of Tertiary age Tv Qad Qf Qa 46° QTc Qa Ql Qd Ql Walla Walla Grande Qls Qad Ya l e Tv River Ql BLUE Tvcr Ql Qf Kalama Lake Glade Qa 117° 46° Tvt S K A M A N I A Qa Qvt Qf Tc Qls Lak Qvt Qls e Merwin Glenwood 118° Washington Division of Geology and Earth Resources Tv Tc Qf Qd Disclaimer: This product is provided ‘as is’ without warranty of any kind, either expressed or implied, 30 Qad Trout Lake ) ( PO Box 47007; Olympia, WA 98504-7007 Qls Qv Mounta QTc Bickleton including, but not limited to, the implied warranties of merchantability and fitness for a particular use. The River Qls 24 Simcoe ins Ti Satus 119° is Tvt Ti Qv Tc Qa Phone: (360) 902-1450; Fax: (360) 902-1785 Washington State Department of Natural Resources will not be liable to the user of this product for any 503 Qls Pass Ql Lew (3107) Cree 14 activity involving the product with respect to the following: (a) lost profits, lost savings, or any other Qf Big Lava Bed Ti River E-mail: [email protected] Qi Geologic Symbols consequential damages; (b) the fitness of the product for a particular purpose; or (c) use of the product or Woodland Ti 141 Tc k Website: http://www.dnr.wa.gov/geology/ QTi Alder Qd Paterson Qf Plymouth results obtained from use of the product. This product is considered to be exempt from the Geologist Qa K L I C K I T A T Qf Tvcr Qad Creek Licensing Act [RCW 18.220.190 (4)] because it is geological research conducted by the State of Washington, Tv Qa Salmon Tc Roc Contact Right-lateral strike-slip fault — Arrows show relative Department of Natural Resources, Division of Geology and Earth Resources. Tvcr La Center QTc Ti Tvt Qa Tv Qls Tv Yac cr k Tv Ql Alderdale olt Win cr movement; short-dashed where inferred, dotted where 503 QTv Qa Creek Scratch boundary is d Lew Tv Qls Tvcr concealed; arrows omitted in crowded areas E Qa cr River Qa Boundary of modern glacier 501 For k River Qa Qv 142 Tc Qf Tvt Tv Qv Left-lateral strike-slip fault — Arrows show relative Ridgefield QTv Qf Little Qls Goldendale Qa Fractures (near southwest corner of Spokane County) movement; short-dashed where inferred, dotted where Ti Tc River 502 Qad White Klickitat Tvt Tc 97 120° concealed; arrows omitted in crowded areas Battle Ground Anticline — Showing direction of plunge; dotted where QTc River Qf Qls Qa Tc QTc Tv Tv Ql QTc Qa concealed Low-angle normal fault — Blocks on upper plate; dotted Qls Tvcr Roads Communities Qv Qv Tvcr 14 Tc Roosevelt where concealed, queried where uncertain; blocks Vancouver Ti Carson Qf Qf Qls Ql Overturned anticline — Dotted where concealed Sources of Data C L Qv Qls Tc Qa NORTHWEST NORTHEAST Lake Qf A R K QTv 90 omitted in crowded areas Dragovich Stoffel and others, 1991 Tvt White Qls QTc Interstate Highway SEATTLE More than 250,000 people Salmon Klickitat Qf Qf Syncline — Showing direction of plunge; dotted where and others, This map was compiled from the following: Qa Ti a Tc Qls Tv Bingen Qv Dip-slip fault — Bar and ball on downthrown side; 2002 5 205 500 Tv QTv Tc Qls Stevenson Columbi concealed Dragovich, J. D.; Logan, R. L.; Schasse, H. W.; Walsh, T. J.; Lingley, W. S., Jr.; Norman, River 395 SPOKANE 80,000 – 250,000 people long-dashed where approximately located, short-dashed 501 Qv Tc U.S. Highway D. K.; Gerstel, W. J.; Lapen, T. J.; Schuster, J. E.; Meyers, K. D., 2002, Geologic Map River Overturned syncline — Dotted where concealed where inferred, dotted where concealed, queried where 47°15´ Qf of Washington—Northwest quadrant: Washington Division of Geology and Earth Qls Qls Qa 20 uncertain; bar and ball omitted in crowded areas VANCOUVER Qf Washington State Highway Port Angeles 15,000 – 79,999 people Monocline, synclinal bend — Dotted where concealed Resources Geologic Map GM-50, 3 sheets, scale 1:250,000, with 72 p. text. 14 QTv Tvcr North Bonneville 121° hougal Qf Normal left-lateral strike-slip fault — Arrows show SOUTHWEST SOUTHEAST Was 122° Qd Schuster, J. E.; Gulick, C. W.; Reidel, S. P.; Fecht, K. R.; Zurenko, Stephanie, 1997, QTc 197 Monocline, anticlinal bend — Dotted where concealed Walsh and others, 1987 Schuster and others, 1997 Qf 23 U.S. Forest Service Road Tonasket Fewer than 15,000 people or unincorporated relative horizontal movement, bar and ball on Geologic map of Washington—Southeast quadrant: Washington Division of Geology Camas Washougal 14 Fault — Long-dashed where approximately located, downthrown side; arrows and bar and ball omitted in and Earth Resources Geologic Map GM-45, 2 sheets, scale 1:250,000, with 20 p. text. Qa Bellingham County Seat (underlined) short-dashed where inferred, dotted where concealed, crowded areas Stoffel, K. L.; Joseph, N. L.; Waggoner, S. Z.; Gulick, C. W.; Korosec, M. A.; Bunning, queried where uncertain 120°30´ B. B., 1991, Geologic map of Washington—Northeast quadrant: Washington Division Normal right-lateral strike-slip fault — Arrows show of Geology and Earth Resources Geologic Map GM-39, 3 sheets, scale 1:250,000, Olympia State Capital Reverse fault — R on upthrown side relative horizontal movement, bar and ball on downthrown side; dotted where concealed; arrows 1:250,000-scale Geologic Quadrant Maps in Washington State with 36 p. text. Thrust fault — Sawteeth on upper plate; long-dashed and bar and ball omitted in crowded areas This map was compiled from the 1:250,000-scale geologic quadrant maps shown Walsh, T. J.; Korosec, M. A.; Phillips, W. M.; Logan, R. L.; Schasse, H. W., 1987, where approximately located, short-dashed where above, and the reader is directed to those geologic maps for further details; Geologic map of Washington—Southwest quadrant: Washington Division of Geology inferred, dotted where concealed, queried where see full references under ‘Sources of Data’ to the right. and Earth Resources Geologic Map 34, 2 sheets, scale 1:250,000, with 28 p. text. uncertain; sawteeth omitted in crowded areas