DOCSLIB.ORG

Petrology of Mt. Washburn, Yellcwstone National Park, Wyoming

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Petrology of Mt. Washburn, Yellcwstone National Park, Wyoming This dissertation has been 63—2551 microfilmed exactly as received SHULTZ, Charles High, 1936- PETROLOGY OF MT. WASHBURN, YELLOWSTONE NATIONAL PARK, WYOMING. The Ohio State University, Ph.D., 1962 Geology University Microfilms, Inc., Ann Arbor, Michigan PETROLOGY OF MT. WASHBURN, YELLCWSTONE NATIONAL PARK, WYOMING DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By aiARLES HIGH SHULTZ, B.S The Ohio State University 196 2 Approved by Adviser Department of Geology CONTENTS Page Chapter 1. Introduction .......................... 1 General Statement ............................ I Location ...................................... I Geomorphology and Climate ..................... 2 Topography .................................. 2 Drainage .................................... 4 Glacial Geology ............................ 3 Climate .................................... 6 Source of D a t a ................................ 6 Field Mapping ....................... 6 Laboratory .................................. 7 Acknowledgments................................ 7 Chapter II, Regional Geology and Summary of Previous W o r k ............................ 10 Regional Tectonics ............................ 10 Yellowstone National Park ..................... 10 Beartooth Mountains ............................ 12 Gallatin R a n g e ................................ 14 Snake River Basin .............................. 14 Teton Mountains and V i c i n i t y ................. 15 Absaroka R a n g e ................................ 17 Mt, Washburn and the Washburn R a n g e ........... 21 Recent Geologic Activity in the Mt, Washburn A r e a ........................................ 24 Hot Springs ................................ 24 Seismic Activity ............................ 28 Terminology and Classification of Fragmental Volcanic Rocks ................... 29 Chapter III. Early Acid Breccia ................. 33 Introduction .................................. 33 Pétrographie mineralogy of the Volcanic Rocks , 33 Plagioclase ................................ 33 S a n i d i n e ................................... 33 Hornblende.................................. 37 Orthopyroxene .............................. 41 Clinopyroxene .............................. 42 Other Primary Minerals ..................... 42 Secondary Minerals .......................... 43 Sedimentary Rocks and Associated Breccias . 43 General Statement .......................... 43 Exposures in Carnelian Creek Valley .... 44 ' Exposures Southwest of Mt. Washburn .... 47 Interpretation................. 56 Welded Tuff .................................... 57 13. Page Chapter III. Early Acid Breccia - continued Lava Flows and Associated B r e c c i a s ........... 60 Field Occurrence............................ 60 Megascopic Description and Petrography . 63 Lava F l o w s ............ 63 B r e c c i a .................................. 69 Breccia Dikes ............................ 70 Minéralogie and Textural Associations . 74 Modal Analysis .............................. 76 Source of the Volcanic R o c k s ............... 77 C o n c l u s i o n ..................... 79 Chapter IV. Early Basic Breccia - Nonfragmental R o c k s .................................... 80 Introduction .................................. 80 Pétrographie Mineralogy ....................... 80 Plagioclase ................................ 80 Olivine .............................. 84 Orthopyroxene .............................. 84 Clinopyroxene ........................... .. 88 H o r n b l e n d e.................................. 88 Other Primary Minerals ..................... 91 G round ma s s .................................. 91 Secondary Minerals .......................... 92 Basalt Dikes .................................. 96 Composite Dike ....................... 103 Field Occurrence and Megascopic Description. 103 Petrography of the Border Phase ........ 105 Petrography of the Central Phase ........ 108 Comparison of the Border and Central Phase . 110 Petrogenesis ................................ 113 Quartz-Diorite Intrusive ..................... 114 F l o w s ........................................... 117 Introduction ................................ 117 Normal Channel Flows ....................... 118 Irregular Bodies of Nonfragmental Rocks . 127 Mixed Flow-Fragmental R o c k s ............... 130 Fragments Without Nonfragmental Equivalents 132 Chapter V, Early Basic Breccia - Fragmental Rocks 137 Introduction .................................. 137 Field Occurrence .............................. 138 Megascopic Description and Petrography .... 147 Monolithologic Breccia ..................... 147 Megascopic Description ................. 147 Petrography.............................. 148 Heterolithologic Breccia - Poor Bedding and S o r t i n g .................................. 149 Megascopic Description ................. 149 111 Page Chapter V. Early Basic Breccia - Fragmental Rocks continued Megascopic Description and Petrography - continued Heterolithologic Breccia - Some Bedding and S o r t i n g ................................. 152 Megascopic Description ................. 152 Petrography............................. 153 Tuffaceous Rocks ........................... 156 Megascopic Description ................. 156 Petrography............................. 157 Origin of Breccia ............................. 160 Epigene Processes Modifying Primary Breccias , 167 Chapter VI, Volcanic Rocks of Uncertain Age . 169 Introduction ................................. 169 Hornblende Andésite D i k e s .................... 169 Lava Flows on Observation P e a k ............... 174 Chapter VII. Chemical Analyses ................. 177 Introduction ................................. 177 Normative Analyses ........................... 177 Discussion of the New Chemical Analyses .... 179 Chapter VIII. Petrogenesis .... ............. 182 Character and Origin of the M a g m a ........ .. 182 Cyclic Behavior of the Eruptions ............. 187 Mineral Petrogenesis and the Nature of the Magma 188 Introduction............................... 188 Plagioclase ............................... 188 Hornblende................................. 189 Nucléation and Paragenesis ................... 190 C o n c l u s i o n ................................... 194 Chapter IX. Plateau Rocks ....................... 196 Introduction ................................. 196 Exposures North of Mt, Washburn ............... 197 Field Occurrence........................... 197 Megascopic Description ..................... 199 Petrography ............................... 199 Exposures South of Mt, Washburn ............... 201 Field Occurrence........................... 201 Megascopic Description ..................... 202 Petrography ............................... 202 O r i g i n ........................................ 203 Chapter X. Structure ........................... 206 Chapter XI, Source of the Early Basic Volcanic R o c k s .......................................... 214 IV Page Chapter XII. Tertiary Geologic History of the Mt. Washburn Region ............................... 218 References Cited ................................. 221 Autobiography ................................... 226 ILLUSTRATIONS Figure Page 1 Location m a p .............................. 3 2 A spatter cone developed around a thermal s p r i n g ...................................... 27 3 Mud pots containing thick pitch-black mud , 27 4 A general view of Washburn Hot Springs . 27 5 Typical euhedral plagioclase phenocryst . 36 6 Slightly oxidized hornblende phenocryst showing typical “pyroxenic” opacité .... 36 7 Hornblende phenocryst with a partially oxidized border .............................. 40 8 Oxyhornblende largely replaced by black type o p a c i t é ................................ 40 9 Hornblende entirely replaced by black type o p a c i t é ................................ 40 10 Typical Early acid sedimentary rocks • . 48 11 Photograph of a semi-polished slab of Early acid conglomeratic sandstone ................. 49 12 Examples of carbonized plant remains and a coalified l o g ................................ 50 13 Photomicrograph of a typical Early acid sandstone.................................... 51 14 Representative samples of fossil plant materials.................................... 54 15 Photomicrograph of Early acid welded tuff . 59 16 Typical felty-microporphyritic texture of Early acid andésite la v a s .................... 65 17 Extreme alteration of Early acid andésite l a v a ........................................ 67 VI Figure Pag© 18 Same as Figure 17, but taken with crossed n i ç o i s .................................... 19 Highly oxidized Early acid andésite breccia fragment .................................. 67 20 Photograph of a semi-polished specimen of an Early acid heterolithologic breccia dike . 72 21 Photomicrograph of the central portion of a breccia d i k e .............................. 72 22 Photomicrograph of the fine-grained border of a breccia dike ................. 72 23 A photomicrograph of an Early acid breccia d i k e ...................................... 75 24 Same as Figure 23, but with crossed nicols 75 25 Plagioclase phenocryst showing an unusual type of twinning characteristic of square g r a i n s .................................... 82 26 Common type of complex plagioclase p h e n o c r y s t ................................ 82 27 Large
Load more

Recommended publications
  • A Publication of the Wyoming Native Plant Society
    Castilleja A Publication of the Wyoming Native Plant Society October 2004, Volume 23, No. 3 www.uwyo.edu/wyndd/wnps/wnps_home.htm In this issue: Relicts and Refugia . 1 Floristic Diversity of Wyoming Counties . 3 Botanical Novitiates Find Botanical Novelty . 4 Critical Habitat for the Colorado Butterfly Plant . 5 Requiem for a Lawnmower – review. 6 Rocky Mountain Natural History – review . .7 Whitebark Pine - excerpt. 8 Cynoglossum boreale – addition to the state flora 9 Raising Livestock and Lowering Carbon Dioxide . 10 Scholarship Announcement . 11 Natives vs. Imposters. 12 Relicts and Refugia By Bonnie Heidel For all of the breath-taking alpine topography of the Medicine Bow Range, some of its heart-thumping botany lies low across rolling expanses. Three years and three stages of peatland research have documented vast Above: Eriophorum gracile (slender cotton-grass) is montane fen systems in the Medicine Bow circumboreal, with outlying distribution in northwestern Range, refugia for eleven rare Wyoming Wyoming, the Medicine Bow Range and South Park in vascular plant species of concern including five Colorado By B. Heidel relict species previously unknown from southern Wyoming. peatlands harbor close to 10% of the rare Peatland rare species are disjunct or Wyoming plant species of concern. peripheral as they are present in Wyoming, Botanists took a plunge into peatlands denizens of high latitudes, not state and with pilot site surveys on the Medicine Bow and regional endemics that are the focus of most the Shoshone national forests to compile a Wyoming Natural Diversity Database botany working list of peatland rare species, flora, and research. However, review of the Wyoming vegetation at a small number of known or plant species of concern list in 2002 compared inferred peatland study sites (Heidel and against regional peatland floras indicated that Laursen 2003 a, b; Mellmann-Brown 2004).
    [Show full text]
  • Related Magmatism in the Upper Wind River Basin, Wyoming (USA), GEOSPHERE; V
    Research Paper THEMED ISSUE: Cenozoic Tectonics, Magmatism, and Stratigraphy of the Snake River Plain–Yellowstone Region and Adjacent Areas GEOSPHERE The leading wisps of Yellowstone: Post–ca. 5 Ma extension- related magmatism in the upper Wind River Basin, Wyoming (USA), GEOSPHERE; v. 14, no. 1 associated with the Yellowstone hotspot tectonic parabola doi:10.1130/GES01553.1 Matthew E. Brueseke1, Anna C. Downey1, Zachary C. Dodd1, William K. Hart2, Dave C. Adams3, and Jeff A. Benowitz4 12 figures; 2 tables; 1 supplemental file 1Department of Geology, Kansas State University, 108 Thompson Hall, Manhattan, Kansas 66506, USA 2Department of Geology and Environmental Earth Science, Miami University, 118C Shideler Hall, Oxford, Ohio 45056, USA 3Box 155, Teton Village, Wyoming 83025, USA CORRESPONDENCE: brueseke@ ksu .edu 4Geophysical Institute and Geochronology Laboratory, University of Alaska Fairbanks, Fairbanks, Alaska 99775, USA CITATION: Brueseke, M.E., Downey, A.C., Dodd, Z.C., Hart, W.K., Adams, D.C., and Benowitz, J.A., 2018, The leading wisps of Yellowstone: Post–ca. 5 Ma ABSTRACT the issue of linking volcanic events to a specific driving mechanism (Fouch, extension-related magmatism in the upper Wind River 2012; Kuehn et al., 2015). Complicating matters, magmatism often continues Basin, Wyoming (USA), associated with the Yellow- The upper Wind River Basin in northwest Wyoming (USA) is located ~80– long after (e.g., millions of years) the upper plate has been translated away stone hotspot tectonic parabola: Geosphere, v. 14, no. 1, p. 74–94, doi:10.1130/GES01553.1. 100 km southeast of the Yellowstone Plateau volcanic field. While the upper from an upwelling plume (Bercovici and Mahoney, 1994; Sleep, 2003; Shervais Wind River Basin is a manifestation of primarily Cretaceous to Eocene Lara- and Hanan, 2008; Jean et al., 2014).
    [Show full text]
  • Yellowstone National Park Geologic Resource Evaluation Scoping
    Geologic Resource Evaluation Scoping Summary Yellowstone National Park This document summarizes the results of a geologic resource evaluation scoping session that was held at Yellowstone National Park on May 16–17, 2005. The NPS Geologic Resources Division (GRD) organized this scoping session in order to view and discuss the park’s geologic resources, address the status of geologic maps and digitizing, and assess resource management issues and needs. In addition to GRD staff, participants included park staff and cooperators from the U.S. Geological Survey and Colorado State University (table 1). Table 1. Participants of Yellowstone’s GRE Scoping Session Name Affiliation Phone E-Mail Bob Volcanologist, USGS–Menlo Park 650-329-5201 [email protected] Christiansen Geologist/GRE Program GIS Lead, NPS Tim Connors 303-969-2093 [email protected] Geologic Resources Division Data Stewardship Coordinator, Greater Rob Daley 406-994-4124 [email protected] Yellowstone Network Supervisory Geologist, Yellowstone Hank Heasler 307-344-2441 [email protected] National Park Geologist, NPS Geologic Resources Bruce Heise 303-969-2017 [email protected] Division Cheryl Geologist, Yellowstone National Park 307-344-2208 [email protected] Jaworowski Katie Geologist/Senior Research Associate, 970-586-7243 [email protected] KellerLynn Colorado State University Branch Chief, NPS Geologic Resources Carol McCoy 303-969-2096 [email protected] Division Ken Pierce Surficial Geologist, USGS–Bozeman 406-994-5085 [email protected] Supervisory GIS Specialist, Yellowstone Anne Rodman 307-344-7381 [email protected] National Park Shannon GIS Specialist, Yellowstone National Park 307-344-7381 [email protected] Savage Monday, May 16, involved a welcome to Yellowstone National Park and an introduction to the Geologic Resource Evaluation (GRE) Program, including status of reports and digital maps.
    [Show full text]
  • Mineral Resources of the Owl Creek Wilderness Study Area, Hot Springs County, Wyoming
    Mineral Resources of the Owl Creek Wilderness Study Area, Hot Springs County, Wyoming U.S. GEOLOGICALSURVEY BULLETIN 1756-D AVAILABILITY OF BOOKS AND MAPS OF THE U.S. GEOLOGICAL SURVEY Instructions on ordering publications of the U.S. Geological Survey, along with prices of the last offerings, are given in the cur­ rent-year issues of the monthly catalog "New Publications of the U.S. Geological Survey." Prices of available U.S. Geological Sur­ vey publications released prior to the current year are listed in the most recent annual "Price and Availability List" Publications that are listed in various U.S. Geological Survey catalogs (see back inside cover) but not listed in the most recent annual "Price and Availability List" are no longer available. Prices of reports released to the open files are given in the listing "U.S. Geological Survey Open-File Reports," updated month­ ly, which is for sale in microfiche from the U.S. Geological Survey, Books and Open-File Reports Section, Federal Center, Box 25425, Denver, CO 80225. Reports released through the NTIS may be obtained by writing to the National Technical Information Service, U.S. Department of Commerce, Springfield, VA 22161; please include NTIS report number with inquiry. Order U.S. Geological Survey publications by mail or over the counter from the offices given below. BY MAIL OVER THE COUNTER Books Books Professional Papers, Bulletins, Water-Supply Papers, Techniques of Water-Resources Investigations, Circulars, publications of general in­ Books of the U.S. Geological Survey are available over the terest (such as leaflets, pamphlets, booklets), single copies of Earthquakes counter at the following Geological Survey Public Inquiries Offices, all & Volcanoes, Preliminary Determination of Epicenters, and some mis­ of which are authorized agents of the Superintendent of Documents: cellaneous reports, including some of the foregoing series that have gone out of print at the Superintendent of Documents, are obtainable by mail from WASHINGTON, D.C.-Main Interior Bldg.
    [Show full text]
  • Yellowstone National Park! Renowned Snowcapped Eagle Peak
    YELLOWSTONE THE FIRST NATIONAL PARK THE HISTORY BEHIND YELLOWSTONE Long before herds of tourists and automobiles crisscrossed Yellowstone’s rare landscape, the unique features comprising the region lured in the West’s early inhabitants, explorers, pioneers, and entrepreneurs. Their stories helped fashion Yellowstone into what it is today and initiated the birth of America’s National Park System. Native Americans As early as 10,000 years ago, ancient inhabitants dwelled in northwest Wyoming. These small bands of nomadic hunters wandered the country- side, hunting the massive herds of bison and gath- ering seeds and berries. During their seasonal travels, these predecessors of today’s Native American tribes stumbled upon Yellowstone and its abundant wildlife. Archaeologists have discov- ered domestic utensils, stone tools, and arrow- heads indicating that these ancient peoples were the first humans to discover Yellowstone and its many wonders. As the region’s climate warmed and horses Great Fountain Geyser. NPS Photo by William S. Keller were introduced to American Indian tribes in the 1600s, Native American visits to Yellowstone became more frequent. The Absaroka (Crow) and AMERICA’S FIRST NATIONAL PARK range from as low as 5,314 feet near the north Blackfeet tribes settled in the territory surrounding entrance’s sagebrush flats to 11,358 feet at the Yellowstone and occasionally dispatched hunting Welcome to Yellowstone National Park! Renowned snowcapped Eagle Peak. Perhaps most interesting- parties into Yellowstone’s vast terrain. Possessing throughout the world for its natural wonders, ly, the park rests on a magma layer buried just one no horses and maintaining an isolated nature, the inspiring scenery, and mysterious wild nature, to three miles below the surface while the rest of Shoshone-Bannock Indians are the only Native America’s first national park is nothing less than the Earth lies more than six miles above the first American tribe to have inhabited Yellowstone extraordinary.
    [Show full text]
  • Guide to the Willows of Shoshone National Forest
    United States Department of Agriculture Guide to the Willows Forest Service Rocky Mountain Research Station of Shoshone National General Technical Report RMRS-GTR-83 Forest October 2001 Walter Fertig Stuart Markow Natural Resources Conservation Service Cody Conservation District Abstract Fertig, Walter; Markow, Stuart. 2001. Guide to the willows of Shoshone National Forest. Gen. Tech. Rep. RMRS-GTR-83. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 79 p. Correct identification of willow species is an important part of land management. This guide describes the 29 willows that are known to occur on the Shoshone National Forest, Wyoming. Keys to pistillate catkins and leaf morphology are included with illustrations and plant descriptions. Key words: Salix, willows, Shoshone National Forest, identification The Authors Walter Fertig has been Heritage Botanist with the University of Wyoming’s Natural Diversity Database (WYNDD) since 1992. He has conducted rare plant surveys and natural areas inventories throughout Wyoming, with an emphasis on the desert basins of southwest Wyoming and the montane and alpine regions of the Wind River and Absaroka ranges. Fertig is the author of the Wyoming Rare Plant Field Guide, and has written over 100 technical reports on rare plants of the State. Stuart Markow received his Masters Degree in botany from the University of Wyoming in 1993 for his floristic survey of the Targhee National Forest in Idaho and Wyoming. He is currently a Botanical Consultant with a research emphasis on the montane flora of the Greater Yellowstone area and the taxonomy of grasses. Acknowledgments Sincere thanks are extended to Kent Houston and Dave Henry of the Shoshone National Forest for providing Forest Service funding for this project.
    [Show full text]
  • Eocene, Oligocene, and Miocene Rocks and \Fertebrate Fossils at the Emerald Lake Locality, 3 Miles South of Ifellowstone National Park,Wyoming
    Eocene, Oligocene, and Miocene Rocks and \fertebrate Fossils at the Emerald Lake Locality, 3 Miles South of Ifellowstone National Park,Wyoming GEOLOGICAL SURVEY PROFESSIONAL PAPER 932-A Prepared in cooperation with the Geological Survey of Wyoming, the Department of Geology of the University of Wyoming, the American Museum of Natural History, and the Carnegie Museum Eocene, Oligocene, and Miocene Rocks and \fertebrate Fossils at the Emerald Lake Locality 3 Miles South of Ifellowstone National Park,Wyoming By J. D. LOVE, MALCOLM C. McKENNA, and MARY R. DAWSON GEOLOGY OF THE TETON-JACKSON HOLE REGION, NORTHWESTERN WYOMING GEOLOGICAL SURVEY PROFESSIONAL PAPER 932-A Prepared in cooperation with the Geological Survey of Wyoming, the Department of Geology of the University of Wyoming, the American Museum of Natural History, and the Carnegie Museum UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1976 UNITED STATES DEPARTMENT OF THE INTERIOR THOMAS S. KLEPPE, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress Cataloging in Publication Data Love, John David, 1913- Eocene, Oligocene, and Miocene rocks and vertebrate fossils at the Emerald Lake locality, 3 miles south of Yellowstone National Park, Wyoming. (Geology of the Teton-Jackson Hole region, northwestern Wyoming) (Geological Survey Professional Paper 932-A) Bibliography: p. Includes index. 1. Geology, Stratigraphic Tertiary. 2. Vertebrates, Fossil. 3. Geology Wyoming Teton Co. I. McKenna, Malcolm C., joint author. II. Dawson, Mary R., joint author. III. Wyoming Geological Survey. IV. Title: Eocene, Oligocene, and Miocene rocks and vertebrate fossils at the Emerald Lake locality ... V. Series. VI. Series: United States Geological Survey Professional Paper 932-A. QE691.L79 551.?'8 76-8159 For sale by the Superintendent of Documents, U.S.
    [Show full text]
  • “For the Benefit and Enjoyment of the People”
    “For the Benefit and Enjoyment of the People” A HISTORY OF CONCESSION DEVELOPMENT IN YELLOWSTONE NATIONAL PARK, 1872–1966 By Mary Shivers Culpin National Park Service, Yellowstone Center for Resources Yellowstone National Park, Wyoming YCR-CR-2003-01, 2003 Photos courtesy of Yellowstone National Park unless otherwise noted. Cover photos are Haynes postcards courtesy of the author. Suggested citation: Culpin, Mary Shivers. 2003. “For the Benefit and Enjoyment of the People”: A History of the Concession Development in Yellowstone National Park, 1872–1966. National Park Service, Yellowstone Center for Resources, Yellowstone National Park, Wyoming, YCR-CR-2003-01. Contents List of Illustrations ...................................................................................................................iv Preface .................................................................................................................................... vii 1. The Early Years, 1872–1881 .............................................................................................. 1 2. Suspicion, Chaos, and the End of Civilian Rule, 1883–1885 ............................................ 9 3. Gibson and the Yellowstone Park Association, 1886–1891 .............................................33 4. Camping Gains a Foothold, 1892–1899........................................................................... 39 5. Competition Among Concessioners, 1900–1914 ............................................................. 47 6. Changes Sweep the Park, 1915–1918
    [Show full text]
  • The Yellowstone Paleontological Survey
    E PALEONT ON O T LO S G W I O C L A L L E National Y Park The Yellowstone Service Department of the Interior Paleontological Survey SURVEY Vincent L. Santucci Yellowstone Center for Resources National Park Service Yellowstone National Park, Wyoming YCR-NR-98-1 1998 How to cite this document: Santucci, V. L. 1998. The Yellowstone Paleontological Survey. Yellowstone Center for Resources, National Park Service, Yellowstone National Park, Wyoming,YCR-NR-98-1. Current address for Vincent L. Santucci is National Park Service, P.O. Box 592, Kemmerer, WY 83101. The Yellowstone Paleontological Survey To Lt. Col. Luke J. Barnett, III “Uncle by blood, brother in spirit!” Vincent L. Santucci Yellowstone Center for Resources National Park Service Yellowstone National Park, Wyoming YCR-NR-98-1 1998 Table of Contents Introduction .................................................................................................... 1 Stratigraphy .................................................................................................... 4 Fossil Chronology........................................................................................... 6 Taxonomy ..................................................................................................... 12 Localities ...................................................................................................... 15 Interpretation ................................................................................................ 19 Paleontological Resource Management.......................................................
    [Show full text]
  • Chapter 3 Description of the Study Area
    Chapter 3 Description of the study area Paul Taucher Melissa Thompson Nikolaus Gribb 3-17 The WBRB drainage basin covers approximately 25 percent streams and elevation. Clockwise from the Pryor Mountains in of the state in north-central and northwestern Wyoming, plus Montana, the boundary runs: smaller areas of south-central Montana. Figure 3-1 is an index map of the approximately 678 townships within the WBRB 1. Northward then southeastward along a Pryor mountain in Wyoming (625) and Montana (53). As determined from ridgeline bordering drainage intoWyoming, to the the GIS database developed for this study, the WBRB covers Wyoming/Montana state line; approximately 22,883 square miles (14.65 million acres) 2. Thence eastward along the Wyoming/Montana state line in Wyoming and 894 square miles (0.57 million acres) in and along a divide in the Bighorn Mountains; Montana. The WBRB encompasses federal, state, and privately 3. Thence generally south-southeastward along the arcuate owned land in all or part of eight Wyoming counties: ridge of the Bighorn Mountains to T39N, R87W; 4. Thence generally south-southwestward along a divide on the Casper Arch from T39N, R87W to the northwestern • All of Big Horn, Park, and Hot Springs counties tip of the Rattlesnake Hills, T34N, R89W; • Approximately 95 percent of Washakie County 5. Thence a short distance southeastward along the ridgeline • Approximately 85 percent of Fremont County of the Rattlesnake Hills into T33N, R88W; • Approximately 10 percent of Teton County 6. Thence irregularly west-southwestward along the Beaver • Small, relatively undeveloped parts of northwestern Divide (Beaver Rim) – an irregular drainage divide on Natrona and western Johnson counties the Casper arch north and west of the Granite Mountains – to T30N, R101W, where it meets the Continental Approximately 80 percent of Yellowstone National Park (in Divide; Park and Teton counties) is included in the drainage basin, as is 7.
    [Show full text]
  • 6/11/2018 at 6:00 Pm Location: Yellowstone Forever's Gardiner
    HIKING NORTHERN YELLOWSTONE'S GEOLOGY #180606 Start: 6/6/2018 at 7:00 p.m. End: 6/11/2018 at 6:00 p.m. Location: Yellowstone Forever’s Gardiner Offices 308 Park Street, Gardiner, MT 59030 Welcome to Yellowstone National Park. If you are a newcomer to the Yellowstone Forever Institute, you will be amazed at what awaits you during each day of exploration. We are glad that you are able to join us in Gardiner, Montana, a wonderful Yellowstone gateway community that many of us at Yellowstone Forever call home. Our goal is to provide you with an enjoyable, high-quality educational experience and a safe and memorable visit to Yellowstone. The following information is provided to help you prepare for your program. Please read it thoroughly and call us at 406.848.2400 or email [email protected] if you have any questions. We recommend all first time visitors seek general park information through the National Park Service at 307.344.2107 or www.nps.gov/yell. Important Information Included in this Document: ● Letter from Your Instructor ● What’s Included ● How to Prepare for this Program ● Suggested Reading ● Yellowstone Forever Park Store Information ● Yellowstone Forever Supporter Information ● Code of Ethics ● Cancellation Policy ● Travel Information ● Supplemental Lodging Information From the Instructor Strap on your pack, lace up your boots, and join a geologist for three full days of hikes to explore the extraordinary geology, diverse ecology, and colorful history and pre-history of Yellowstone’s northern range. Learn why geology was key to Yellowstone becoming the world’s first national park.
    [Show full text]
  • YELLOWSTONE NATIONAL PARK R N C Hard-Sided Camping Units Only C E Perc an Ez Pelic N See Detail Map Above PE L LICAN
    Services and Facilities Mammoth Hot Springs Old Faithful Canyon Village West Thumb Fishing Bridge, Lake Village 6239ft 1902m 7365ft 2254m 7734ft 2357m and Grant Village 7733ft 2357m and Bridge Bay 7784ft 2373m 0 0.1 0.5 Km To Gardiner To Madison To Tower-Roosevelt To Lake Village 0 0.5 Km To Canyon Emergencies Check the park news- Mammoth Hot Springs Hotel Grand Geyser Amphitheater For medical or other emer- paper for seasonal dates Fi Duck 0 0.1 Mi 0.5 Post Amphitheater re To Norris 0 0.5 Mi h gencies contact a ranger or of services and facilities. Office o Lake Fishing Bridge le West Thumb Ice Visitor Education call 307-344-7381 or 911. Geyser Amphitheater Hill West Thumb Castle Center Showers-Laundry Ranger station To Geyser Basin Geyser Ri Old Ice Upper Terrace Drive: Park ve Canyon Lodge Medical clinic r Faithful Visitor Headquarters no buses, RVs, or trailers; y Information Station Campground a closed in winter Center To East HISTORIC w Bookstore - Showers Entrance Winter road closures FORT e n Laundry YELLOWSTONE o YELLOWSTONE From early November to Lodging Lake Village Post early May most park roads LOWER Office Lake Lodge UPPER TERRACES Chapel Old Faithful Inn Old Faithful LAKE are closed. The exception Food service TERRACES AREA Geyser Lower Falls is the road in the park AREA Old 308ft Upper Lookout between the North one-way Faithful Falls 94m Fishing Bridge Picnic area To Point Amphitheater North Lodge View Grand Recreational Vehicle Park Entrance and Cooke City. Inspiration hard-sided camping units only Entrance Post Office View Point It is open all year.
    [Show full text]