DOCSLIB.ORG

Geologic Map of Gibbonsville, Shewag

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Geologic Map of Gibbonsville, Shewag IDAHO GEOLOGICAL SURVEY TECHNICAL REPORT 14-2 MOSCOW-BOISE-POCATELLO IDAHOGEOLOGY.ORG STEWART AND OTHERS TKi REGIONAL SETTING CORRELATION OF MAP UNITS 114° 113.5° Qa HOLOCENE TKi GEOLOGIC MAP OF THE GIBBONSVILLE , SHEWAG LAKE , AND ALLAN MOUNTAIN QUADRANGLES , AND PARTS 40’ 5061 38 Ydc e Qg g PLEISTOCENE CENOZOIC n x a e l R p Ydc e t fault OF THE OST RAIL ASS AND IG OLE ASS UADRANGLES , EMHI OUNTY , DAHO , AND AVALLI AND r L T P B H P Q L C I R i UNCONFORMITY m n h o p C p e e Ts ? Tfb 5060 a r g 40 S o n C a TKi 48 45 60 t EAVERHEAD OUNTIES , ONTANA R Tcv Tcr B C M 70 45 A’ o 50 t tains EOCENE 25 o o 65 r r o r oun Tcd oot detachme e r r 45 Ydc 55 54 40 t r t reek fault e t i t 45 e ? Lick C t Td B 50 t Eric D. Stewart, Travis D. Steel, David E. Stewart, and Paul K. Link 40 i tler M 5059 65 37 B in 40 60 Bit 46° UNCONFORMITY 2014 35 60 Ydc CRETACEOUS Yg onda-P onda detachmefault n TKi 40 Yg MESOZOIC 64 nac nac 40 A A Lick C 630 000 FEET Qa reek fault (MT) 58 Yg 5058 60 32 45 UNCONFORMITY MAP LOCATION AND SCALE Yg 75 Ys 60 LEMHI SUB-BASIN BELT BASIN? MESOPROTEROZOIC This Technical Report is independent mapping by Eric D. Stewart, Travis 40 alls D. Steel, David E. Stewart, and Paul K. Link. Its content and format may Map area ass Yg Yqjl eek 45 r not conform to IGS standards. 5057 a rail P which F T lk C n E a Lick Ck. fault er MN tains ost t Ylc v L O 114°07’30’’ 5’ 2’30’’ 113°52’30’’ GN 530 000 FEET (ID) n oun MONTANA 820 000 FEET (MT) 726000mE 727 728 729 730 490 000 FEET (ID) 732 733 45°37’30’’ 45°37’30’’ o 36 5056 Ysu Idaho 48 M ass 15.5° 40 67 Ys tain 5056000mN 26 ? 2°06’ 276 MILS 37ES08 Qa Ys ioneer M oun 37 65 P Ysl onsville 37 MILS 65 IDAHO 50 Big Hole Valley ibb ig Hole P 49 llan M G B Ys 58 A Qg 13 Yg 58 Yg 1 440 000 FEET 38 ? QUADRANGLE 20 (IDAHO) 45.5° 71 45 e UTM GRID AND 2001 MAGNETIC NORTH 45 LOCATION tain k 61 48 Ydc or DECLINATION AT CENTER OF SHEET Yg oun ag Lak 46 47 63 5055 th F 5055 Ys 40 45 40 sses M Nor hew S 50 Uly 69 45 54 Qa 70 Ys S DESCRIPTION OF MAP UNITS 45 detachmealmonn Basin 620 000 23 Ydc 86 FEET (MT) 65 Iron Lake fault Td 5054 ALLUVIAL DEPOSITS SCALE 1:40,000 5054 77 Ylc Ylc 56 59 51 Ys 40 1 0.5 0 1 Yg 35 t fault 41 30 55 MILE ? Qa Alluvium (Quaternary) - Stream deposits of locally derived mud, sand, and gravel. FEET 45 1000 0 1000 2000 3000 4000 5000 6000 7000 Along Ditch and Hughes Creek, reworked boulders (Tfb) are also common. 78 40 Salmon River Mountains KILOMETER 66 Qg 55 1 0.5 0 1 58 Ys 40 75 65 35 Contour interval 40 feet Qa 70 GLACIAL DEPOSITS 58 63 62 45 75 30 5053 36 miles 5053 78 55 Qg 50 40 eek fault Qg Glacial Till (Quaternary) - Surficial deposits consisting of locally derived angular Qg 67 26 51 72 35 Iron Lake fault 80 gravels to boulders. Very poorly sorted. 67 39 35 75 Yqjl 40 35 65 nderson Cr 55 53 40 A Compiled from Lewis unpublished mapping, Lewis (1998), Ruppel Yqjl 53 35 TERTIARY IGNEOUS AND SEDIMENTARY ROCKS 56 et al. (1993), Lonn and Berg (1996), Berg and Lonn (1996), Evans and Qg 40 53 Ydc Green (2003), Foster et al. (2010). 50 50 5052 MAP SYMBOLS 5052 47 B Qa 65 Tfb Outwash Flood Boulders (Tertiary) - Flood deposits. Boulders up to 70 centimeters 58 58 50 in diameter mixed with cobbles, gravels, and sand. Exposed only along a small section 50 50 34 45 67 35’ of Ditch Creek, though much of the Quaternary alluvium along lower Ditch Creek and Strike and dip of bedding 35’ 40 38 30 Yqjl 22 Hughes Creek are reworked flood boulders. 50 40 57 Strike and dip of bedding Ys 70 35 Ylc 55 40 24 right-side-up 65 30 Ta Alluvium (Tertiary) - Unconsolidated rounded cobbles of dominantly Challis 58 38 5051 50 5051 Ys 70 44 Volcanics and Proterozoic quartzites. Forms flat surfaces and is easily eroded. 65 Strike and dip of overturned 53 66 42 22 bedding, inferred 35 Tcr Challis Volcanics, Rhyolite (Tertiary) - Biotite-quartz-rhyolite porphyry. Rounded, 72 58 40 Td 50 55 50 millimeter long phenocrysts of quartz are common, as are pumice clasts (Lopez, 74 35 40 Ys 60 65 Strike and dip of overturned 60 37 1982a). The rhyolite is poorly to moderately welded, and has either a glassy or Qg 3554 bedding 74 Ylc 55 devitrified matrix (Lopez, 1982a). 50 30 30 5050 41 35 67 60 78 Strike and dip of foliation 46 35 20 40 Tcd Challis Volcanics, Dacite (Tertiary) - Vitreous biotite-hornblende-dacite porphyry. Yqjl Ys 38 30 45 eek fault 50 45 5 Flow banding is common. Phenocrysts are up to several millimeters long. In places 45 35 60 20 er Cr 35 33 likely deposited as an ash flow tuff, elsewhere as a hypabyssal intrusive. Strike and dip of volcanic 25 30 35 85 37 33 alz 25 50 S 73 50 25 25 54 32 70 20 15 45 86 35 10 75 20 72 65 Qa 10 Tcv Challis Volcanics and Tertiary Sediments, undivided (Tertiary) - Hypabyssal tuff, 75 Ylc Yqjl 15 Contact, solid where 5049 70 Ys 60 lava and dikes of quartz, potassium feldspar, hornblende dacite porphyry and quartz 44 44 15 65 57 82 known, dashed where Yqjl 45 30 rhyolite tuff. Phenocrysts are up to several millimeters long. Unconsolidated fluvial inferred, dotted where 55 49 43 46ES08 Yqjl sands and cobbles are interbedded within the volcanics. covered 30 39 40 30 40 31 32 15 Yqjl 80 Td Diorite (Tertiary?) - Greenish-black, medium grained diorite, containing plagioclase, 55 47 14 Ylc Normal fault, solid where 10 40 35 50 64 Ydc hornblende, pyroxene, biotite and magnetite (Lopez, 1982a, Lopez et al., 2004). Age 40 45 63 30 known, dashed where 50 Ylc 48 48 35 uncertain. inferred, dotted where 40 ? 61 75 37 55 32 28 covered Tcr 15 48 75 Yqjl 65 Qa 15 28 60 TERTIARY-CRETACEOUS INTRUSIVE ROCKS 69 Qa 45 30 58 47 80 75 64 50 Thrust fault, solid where 62 55 46 79 86 57 62 65 25 Qg 45 Intrusives (Tertiary-Cretaceous) - Undivided unit containing Tertiary and Cretaceous known, dashed where inferred, 32 47 40 45 55 TKi 57 70 25 37 46 12 biotite granodiorite and Tertiary biotite-muscovite granite (Desmarais, 1983; Lopez et dotted where covered Yqjl 31 13 15 32’30’’ 80 Tcd 30 al., 2004). 80 65 Tfb 25 67 81 32 65 85 48 45 Qa Fault (cross-section only), 20 Qg 22 30 Qa 8 where the circle surrounding 65 53 57 24 12 Ydc MESOPROTEROZOIC STRATA 28 a cross indicates movement 50 32 82 50 69 40 Yqjl 23 47 40 Ydc ? 53 10 13 57 56 48 16 ? Yqjl Quartzite of Jahnke Lake (Mesoproterozoic) - Generally pale grey to green, fine- to inner circle indicates 32 29 Lick Creek fault 25 70 20 57 85 very fine-grained plagioclase-rich quartzite. Interbedded siltite and argillite is movement out of the page 45 38 44 21 63 50 25 40 44 common. The quartzite is laminated to thinly bedded, and commonly shows ripples, 73 35 Ysu 56 Tcr 20 55 climbing ripples, load casts, and trough and planar cross-bedding. Fluid escape 52 20 Trend and plunge of fold hinge 74 Ydc 25 20 25 77 18 structures, convolute bedding, and hummocky cross-bedding are rare. In the 26 11 28 Ydc 63 sediment type classification of Winston and Link (1993) the most common sediment Yqjl 45 Tcd 20 25 20 B’ Plunging anticline, solid where 34 Tcd Ta 25 55 35 types are cross-bedded sand, flat-laminated sand, and even couples. It is slightly finer 36 Yqjl 60 Lick C 36 20 13 r known, dashed where inferred, 70 eek fault 5045 45 32 Lick Creek fault grained than the Swauger Formation, and is equivalent to quartzite type II of Berg 33 65 48 32 43 30 dotted where covered 57 Qa 35 50 22 20 30 (1977). 23 Qa 20 20 A 49ES0883 13 54 35 43 60 32 40 64 52 41 25 22 31 Plunging syncline, solid where 30 40 36 25 Ylc Lawson Creek Formation (Mesoproterozoic) - Varying from grey, fine-grained known, dashed where inferred, Qg 50 Tcr Ysu 50 Qa Ysu feldspathic quartzite to dark grey to black siltite and argillite. Fine-grained quartzite fines dotted where covered 74 18 Tcr 19 40 34 upward on the decimeter scale into siltite/argillite. Heavy mineral laminations, ripple 63 40 Tcv cross-beds, and climbing ripples are common. This unit contains significantly more siltite and Overturned syncline, solid where 5044 32 10 30 Qa Yqjl argillite than the Gunsight Formation and the Quartzite of Jahnke Lake.
Load more

Recommended publications
  • GEOLOGIC MAP of the LAME DEER 30. X 60. QUADRANGLE
    PRELIMINARY GEOLOGIC MAP OF THE NEZ PERCE PASS 30' x 60' QUADRANGLE, WESTERN MONTANA Compiled and mapped by Richard B. Berg and Jeffrey D. Lonn Montana Bureau of Mines and Geology Open File Report MBMG 339 1996 This report has been reviewed for conformity with Montana Bureau of Mines and Geology’s technical and editorial standards. Partial support has been provided by the STATEMAP component of the National Cooperative Geology Mapping Program of the U.S. Geological Survey under contract Number 1434-94-A-91368. PRELIMINARY GEOLOGIC MAP OF THE NEZ PERCE PASS 30' X 60' QUADRANGLE, MONTANA Compiled and Mapped by Richard B. Berg and Jeffrey D Lonn DESCRIPTION OF MAP UNITS Qls LANDSLIDE DEPOSITS (HOLOCENE) Unsorted and unstratified mixtures of locally derived material transported down adjacent steep slopes and characterized by irregular hummocky surfaces. Occurs most often as earthflow movement on slopes underlain by Tertiary sedimentary (Tgc) and volcanic (Tv) rocks with high clay content. Qal ALLUVIAL DEPOSITS OF THE PRESENT FLOOD PLAIN (HOLOCENE) Fresh, well-sorted, well-rounded gravel and sand with a minor amount of silt and clay. Beneath modern flood plains and streams. Well logs show an average thickness of 40 feet (McMurtrey and others, 1972). Qat RIVER TERRACE DEPOSIT (LATE PLEISTOCENE?) Not exposed in outcrop, but the surfaces consist of unweathered, well-rounded, mostly granitic cobbles. These surfaces stand 15-25 feet above the present flood plain. Well logs indicate a thickness of 60-70 feet of sand, gravel, and cobbles. At least two terraces have been recognized (Uthman, 1988), but they are cannot be distinguished everywhere.
    [Show full text]
  • Two High Altitude Game Trap Sites in Montana
    University of Montana ScholarWorks at University of Montana Graduate Student Theses, Dissertations, & Professional Papers Graduate School 1974 Two High Altitude Game Trap Sites in Montana Bonnie Jean Hogan The University of Montana Follow this and additional works at: https://scholarworks.umt.edu/etd Let us know how access to this document benefits ou.y Recommended Citation Hogan, Bonnie Jean, "Two High Altitude Game Trap Sites in Montana" (1974). Graduate Student Theses, Dissertations, & Professional Papers. 9318. https://scholarworks.umt.edu/etd/9318 This Thesis is brought to you for free and open access by the Graduate School at ScholarWorks at University of Montana. It has been accepted for inclusion in Graduate Student Theses, Dissertations, & Professional Papers by an authorized administrator of ScholarWorks at University of Montana. For more information, please contact [email protected]. TWO HIGH ALTITUDE. GAME TRAP SITES IN MONTANA By Bonnie Herda Hogan B.A., University of Montana, 1969 Presented in partial fulfillment of the requirements for the degree of Master of Arts UNIVERSITY OF MONTANA 1974 Approved by: v s'sr~) s / '/ 7 / y ■Zu.£&~ fi-'T n Chairman, Board''of Examiners Gra< ie Schoo/1 ? £ Date UMI Number: EP72630 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted. Also, if material had to be removed, a note will indicate the deletion. Publishing UMI EP72630 Published by ProQuest LLC (2015). Copyright in the Dissertation held by the Author.
    [Show full text]
  • 6800-Year Vegetation and Fire History in the Bitterroot Mountain Range Montana
    University of Montana ScholarWorks at University of Montana Graduate Student Theses, Dissertations, & Professional Papers Graduate School 1995 6800-year vegetation and fire history in the Bitterroot Mountain Range Montana Anne Elizabeth Karsian The University of Montana Follow this and additional works at: https://scholarworks.umt.edu/etd Let us know how access to this document benefits ou.y Recommended Citation Karsian, Anne Elizabeth, "6800-year vegetation and fire history in the Bitterroot Mountain Range Montana" (1995). Graduate Student Theses, Dissertations, & Professional Papers. 6683. https://scholarworks.umt.edu/etd/6683 This Thesis is brought to you for free and open access by the Graduate School at ScholarWorks at University of Montana. It has been accepted for inclusion in Graduate Student Theses, Dissertations, & Professional Papers by an authorized administrator of ScholarWorks at University of Montana. For more information, please contact [email protected]. Anne- K a r s j a n i Maureen and Mike MANSFIELD LIBRARY TheM University ontana of Permission is granted by tlie author to reproduce this material in its entirety, provided that tliis material is used for scholarly purposes and is properly cited in published works and repoits. * * Please check "Yes'' or “No “ and provide signature Yes, I grant permission ..\1 No, I do not grant permission ----- Author’s Signature Date; ' n 1 Any copying for commercial purposes or financial gain may be undertaken only with ^he author’s explicit consent. ■ Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. Reproduced with permission of the copyright owner. Further reproduction prohibited without permission. A 6800-YEAR VEGETATION AND FIRE HISTORY IN THE BITTERROOT MOUNTAIN RANGE, MONTANA By ANNE ELIZABETH KARSIAN Presented in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE UNIVERSHY OF MONTANA Department of Forestry 1995 Approved by: t' z o Chairperson 7 ^ ^ ^ /.
    [Show full text]
  • Fiscal Year 2008 FOREST PLAN MONITORING and EVALUATION
    United States FOREST PLAN De p a rt me nt of Agri culture MONITORING AND EVALUATION REPORT Fiscal Year 2008 Forest Service Northern Region Bitterroot National Forest The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of an individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TTD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. Table of Contents Monitoring Item Introduction ................................................................................................................................................................ 1 TERRESTRIAL ECOSYSTEMS Ecosystem Composition and Structure Management Effects on Soil - Item 31 ...................................................................................................................... 3 Lodgepole and Ponderosa Pine Volume - Item 12 .................................................................................................... 8 Silvicultural
    [Show full text]
  • Abandoned-Inactive Mines on Bitterroot National Forest-Administered Land
    Abandoned-Inactive Mines on Bitterroot National Forest-Administered Land Map of the Curlew Mine by Rick Schmidt in MBMG mineral property files Open-File Report MBMG 484 Phyllis A. Hargrave Catherine McDonald Michael D. Kerschen John J. Metesh Robert Wintergerst Prepared for the U.S. Department of Agriculture Forest Service-Region 1 Abandoned-Inactive Mines on Bitterroot National Forest-Administered Land Open-File Report MBMG 484 October 2003 Phyllis A. Hargrave Catherine McDonald Michael D. Kerschen John J. Metesh Robert Wintergerst Prepared for the U.S. Department of Agriculture Forest Service-Region 1 CONTENTS Page LIST OF FIGURES ........................................................... iii LIST OF TABLES ............................................................ iii 1.0 INTRODUCTION ..........................................................1 1.1 Project Objectives ....................................................1 1.2 Abandoned and Inactive Mines Defined . 2 1.3 Health and Environmental Problems at Mines . 2 1.3.1 Acid Mine Drainage ...........................................3 1.3.2 Solubilities of Selected Metals ...................................3 1.3.3 The Use of pH and SC to Identify Problems . 5 1.4 Methodology ........................................................5 1.4.1 Data Sources .................................................5 1.4.2 Pre-Field Screening............................................6 1.4.3 Field Screening ...............................................7 1.4.4 Field Methods ................................................8
    [Show full text]
  • Experience the Nez Perce Trail
    Lolo, Montana, to the Big Hole National Battlefield, Montana, through the Bitterroot Valley Experience the Nez Perce Trail Bitterroot River © Jerry Bauer 1 The Nez Perce (Nee-Me-Poo) National Historic Trail Designated by Congress in 1986, the entire Nez Perce National Historic Trail stretches 1,170 miles from the Wallowa Valley of eastern Oregon to the plains of north-central Montana. This segment of the Nez Perce National Historic Trail from Lolo, Montana, to the Big Hole Battlefield, Montana through the Bitterroot Valley is one of eight available tours (complete list on page 35). These are available at Forest Service offices and other federal and local visitor centers along the route. As you travel this historic trail, you will see highway signs marking the official Auto Tour route. Each Mainstream Auto Tour route stays on all-weather roads passable for all types of vehicles. Adventurous and Rugged Routes are an alternative for those seeking the most authentic historic route. They are often on gravel or dirt roads, so plan ahead. Check weather and road conditions before embarking on your journey. Call 511 for road condition reports on major routes. For road condition information on Adventurous and Rugged routes inquire locally. 3 Experience the Nez Perce Trail How do I get there? Mainstream Traveler (Passable for all types of vehicles.) This Auto Tour begins at Fort Fizzle, 4.6 miles west of Lolo Montana. Lolo is located approximately 7 miles south For most travelers this will be the appropriate route. of Missoula, Montana. The roads are generally paved and won’t pose a challenge for typical cars, campers with trailers, and RVs.
    [Show full text]
  • Salmon River Management Plan, Idaho
    Bitterroot, Boise, Nez Perce, Payette, and Salmon-Challis National Forests Record of Decision Final Environmental Impact Statement for the Frank Church – River of No Return Wilderness Revised Wilderness Management Plan and Amendments for Land and Resource Management Plans Bitterroot, Boise, Nez Perce, Payette, and Salmon-Challis NFs Located In: Custer, Idaho, Lemhi, and Valley Counties, Idaho Responsible Agency: USDA - Forest Service Responsible David T. Bull, Forest Supervisor, Bitterroot NF Officials: Bruce E. Bernhardt, Forest Supervisor, Nez Perce NF Mark J. Madrid, Forest Supervisor, Payette NF Lesley W. Thompson, Acting Forest Supervisor, Salmon- Challis NF The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, or marital and family status. (Not all prohibited bases apply to all programs.) Person with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA’s TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write USDA, Director, Office of Civil Rights, Room 326-W, Whitten Building, 1400 Independence Ave., SW, Washington, D.C. 20250-9410 or call (202) 720-5964 (voice and TDD). USDA is an equal opportunity provider and employer. ROD--II Table of Contents PREFACE ...............................................................................................................................................
    [Show full text]
  • Montana Kaimin, November 5, 1976 Associated Students of the University of Montana
    University of Montana ScholarWorks at University of Montana Associated Students of the University of Montana Montana Kaimin, 1898-present (ASUM) 11-5-1976 Montana Kaimin, November 5, 1976 Associated Students of the University of Montana Let us know how access to this document benefits ouy . Follow this and additional works at: https://scholarworks.umt.edu/studentnewspaper Recommended Citation Associated Students of the University of Montana, "Montana Kaimin, November 5, 1976" (1976). Montana Kaimin, 1898-present. 6544. https://scholarworks.umt.edu/studentnewspaper/6544 This Newspaper is brought to you for free and open access by the Associated Students of the University of Montana (ASUM) at ScholarWorks at University of Montana. It has been accepted for inclusion in Montana Kaimin, 1898-present by an authorized administrator of ScholarWorks at University of Montana. For more information, please contact [email protected]. Professors rap Pettit’s appointment procedure By RON WILCOX The committee then reviewed the regulations when selecting Dayton. Montana Kaimln Reporter candidates agreed upon by the com­ “He may have met the letter of the mittee and Pettit, and rejected those law, but not the spirit of the law," she Two University of Montana profes­ candidates, including Dayton, not said. sors are considering legal action meeting the qualifications, she said. Her major concern, however, is that Pettit has made Dayton's contesting the procedure Com­ The committee submitted its missioner of Higher Education position permanent instead of con­ report on qualified candidates to Pet­ ducting a broader search, she said. Lawrence Pettit followed in ap­ tit on Sept. 15 and received Pettit's pointing his new deputy com­ reply on Sept.
    [Show full text]
  • Wilderness in the Northern Rockies| a Missoula-Lolo National Forest Perspective
    University of Montana ScholarWorks at University of Montana Graduate Student Theses, Dissertations, & Professional Papers Graduate School 1993 Wilderness in the northern Rockies| A Missoula-Lolo National Forest perspective Todd L. Denison The University of Montana Follow this and additional works at: https://scholarworks.umt.edu/etd Let us know how access to this document benefits ou.y Recommended Citation Denison, Todd L., "Wilderness in the northern Rockies| A Missoula-Lolo National Forest perspective" (1993). Graduate Student Theses, Dissertations, & Professional Papers. 4091. https://scholarworks.umt.edu/etd/4091 This Thesis is brought to you for free and open access by the Graduate School at ScholarWorks at University of Montana. It has been accepted for inclusion in Graduate Student Theses, Dissertations, & Professional Papers by an authorized administrator of ScholarWorks at University of Montana. For more information, please contact [email protected]. Maureen and Mike MANSFIELD LIBRARY Copying allowed as provided under provisions of the Fair Use Section of the U.S. COPYRIGHT LAW, 1976. Any copying for commercial purposes or financial gain may be undertaken only with the author's written consent. MontanaUniversity of WILDERNESS IN THE NORTHERN ROCKIES: A MISSOULA-LOLO NATIONAL FOREST PERSPECTIVE By Todd L. Denison B.A. University of Montana, 1986 Presented in partial fulfillment of the requirements for the degree of Master of Arts University of Montana 1993 Approved by Chairman, Board of Examiners Dean, Graduate School UMI Number: EP36297 All rights reserved INFORMATION TO ALL USERS The quality of this reproduction is dependent upon the quality of the copy submitted. In the unlikely event that the author did not send a complete manuscript and there are missing pages, these will be noted.
    [Show full text]
  • Nez Perce (Nee-Me-Poo) National Historic Trail Progress Report Summer 2018
    United States Department of Agriculture Nez Perce (Nee-Me-Poo) National Historic Trail Progress Report Summer 2018 Administrator’s Corner Summer is officially here! Who’s enjoying the summer sun?! We hope you’re getting out and exploring some terrific places and meeting new people along the Nez Perce (Nee-Me-Poo) National Historic Trail (NPNHT). I hope your summer is as McFarland - full of the same excitement and discovery that infuses everything we do at the NPNHT Administration Program. This summer is special as we celebrate the 50th Anniversary of the National Trails System Act (NTSA). It is truly “A celebration of America.” Enjoy a few examples of ways our Photo Courtesy of Broncheau of Sandra Courtesy Photo partners helped us celebrate the 50th in this edition. Stay A visitor pauses to enjoy a high mountain lake informed by visiting the NPNHT website for additional along the NPNHT in central Idaho details. We invite you to visit and enjoy our wild and scenic beauty, unique points of interest, and engaging recreational activities. Find your adventure away from the city lights and under the stars of the Trail. Enjoy the moment. The NPNHT provides access to adventures while connecting with its colorful past. Whether you are a history buff, wildflower admirer, or an explorer, you will enjoy your time. The NPNHT is ripe for discovery. The paths to exploration are exciting. We think you’ll agree. Our Auto Tour routes provide many miles of road on which to ramble and immerse yourself in history. Whether you are traveling by bus, car, bicycle, or motorcycle, the NPNHT Auto Tour invites you to come and enjoy its beauty.
    [Show full text]
  • Continental Divide National Scenic Trail
    Continental Divide National Scenic Trail The Continental Divide Scenic Trail (CDNST) was established by congress under the National Trails System Act of 1968. The trail will extend 3,100 miles, in its entirety, from Canada to Mexico. This northern-most portion follows the backbone of the Rocky Mountains for 795 miles through Montana and Idaho. It passes through some of our nation's most spectacular scenery--Glacier National Park, ten national forests with wildernesses such as the Bob Marshall and Anaconda Pintler, several Bureau of Land Management Resource Areas, State lands and short segments of private lands. This segment begins at the U.S./Canada border between Glacier and Waterton Lakes National Parks, following a route near the divide and through the Blackfeet Indian Reservation to Marias Pass. Southward the trail passes through the Bob Marshall and Scapegoat Wildernesses, skirting the Chinese Wall. After crossing Rogers and MacDonald Passes, it continues through historic mining districts and ghost towns. West of Anaconda the trail traverses the length of the Anaconda-Pintler Wilderness, reaching the Montana-Idaho border near Lost Trail Pass on the 1805 route of Lewis and Clark. Winding through the Bitterroot Range, the trail passes high above the Big Hole National Battlefield, scene of conflict between the Nez Perce Tribe and the U.S. Army in 1877, and on to Lemhi Pass, headwaters of the Missouri River and marked by the Sacajawea Memorial. Continuing on through the Bitterroots, it crosses Monida Pass and winds along the crest of the Centennial Mountains above Red Rock Lakes National Wildlife Refuge. Staying near the divide, the trail crosses Raynolds and Targhee Passes with views of Henry's Lake to the south and Hebgen Lake to the north, before continuing on to the end of this segment of the CDNST, at the western boundary of Yellowstone National Park.
    [Show full text]
  • Level IV Ecoregions of Montana
    DRAFT 2 15. Northern Rockies Ecoregion 15 is mountainous and rugged. Climate, trees, and understory species are characteristically maritime-influenced. Douglas-fir, subalpine fir, Englemann spruce, western larch, lodgepole pine, and ponderosa pine as well as Pacific indicators such as western redcedar, western hemlock, mountain Ecoregions of Montana hemlock, and grand fir occur. Pacific tree species are more numerous than in the Idaho Batholith (16) Second Edition and are never dominant in the Middle Rockies (17). Alpine areas occur but, as a whole, the region has lower elevations, less perennial snow and ice, and fewer glacial lakes than the adjacent Canadian Rockies (41). Metasedimentary rocks are common; granitic rocks and associated management problems are less extensive than in the Idaho Batholith (16). Thick volcanic ash deposits are more Widespread forests cover the Northern Elk commonly are found in high mountain Literature Cited: Rockies (15). Pacific Coast tree species are pastures during the summer and on lower, Ecoregions denote areas of general similarity in ecosystems and in the type, quality, and quantity of and Foothill Prairies (formerly Ecoregion 16) to another level III ecoregion, the Middle Rockies (17). The widespread than in Ecoregion 16. Logging and mining are common and have caused stream water Bailey, R.G., Avers, P.E., King, T., and McNab, W.H., eds., 1994, Ecoregions and subregions of the United States (map) (supplementary table of common locally. The ecoregion has been densely forested slopes during the winter. environmental resources; they are designed to serve as a spatial framework for the research, assessment, second edition also modifies a few level IV ecoregion lines along Montana's western border so that quality problems in the region.
    [Show full text]