DOCSLIB.ORG

The Tufas of Pyramid Lake, Nevada

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
The Tufas of Pyramid Lake, Nevada Prepared in cooperation with the Pyramid Lake Paiute Tribe and the Pyramid Lake Museum Visitor Center The Tufas of Pyramid Lake, Nevada U.S. Geological Survey Circular 1267 U.S. Department of the Interior U.S. Geological Survey The Tufas of Pyramid Lake, Nevada By Larry Benson Prepared in cooperation with the Pyramid Lake Paiute Tribe and the Pyramid Lake Museum Visitor Center U.S. Geological Survey Circular 1267 U.S. Department of the Interior U.S. Geological Survey ii U.S. Department of the Interior Gale A. Norton, Secretary U.S. Geological Survey Charles G. Groat, Director U.S. Geological Survey, Reston, Virginia, 2004 Free on application to: U.S. Geological Survey, Information Services Box 25286, Denver Federal Center Denver, CO 80225 For more information about the USGS and its products: Telephone: 1-888-ASK-USGS World Wide Web: http://www.usgs.gov/ Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. Suggested citation: Benson, L.V., 2004, The Tufas of Pyramid Lake, Nevada: U.S. Geological Survey Circular 1267, 14p. Library of Congress Cataloging-in-Publication Data Benson, Larry V. The tufas of Pyramid Lake, Nevada I by Larry Benson p. em/ -- (U.S. Geological Survey circular ; 1267) "Prepared in cooperation with the Pyramid Lake Paiute Tribe and the Pyramid Lake Museum Visitor Center." ISBN 0-607-97555-5 (alk. paper) 1. Rocks, Carbonate--Nevada--Pyramid Lake. 2. Calcium carbonate--Nevada--Pyramid Lake. 3. Geology, Stratigraphic--Quaternary. 4. Geology--Nevada--Pyramid Lake. 5. Petrology--Nevada--Pyramid Lake. 6. Pyramid Lake (Nev.)--Geology. I. Title. II. Series OE471.15.C3B46 2004 552' .5--dc22 2004049410 iii Contents Abstract .......................................................................................................................................................... 1 Introduction ................................................................................................................................................... 1 Tufa Varieties and Forms ............................................................................................................................. 3 The Elevation of Tufa Deposits And Their Relation To Overflow Points ............................................ 10 The Terraces of Anaho Island .................................................................................................................. 10 Elevational History of Pyramid Lake/Lake Lahontan ............................................................................. 12 Recent Tufa Formation ............................................................................................................................... 12 Conclusions ................................................................................................................................................. 13 References ................................................................................................................................................... 14 Figures Figure 1. Photo of Pyramid Island along the east shore of Pyramid Lake ........................................ 1 Figure 2. Schematic of Pluvial Lake Lahontan at its highstand about 15,000 years ago ................ 2 Figure 3. Graph of lake elevation in the Pyramid Lake subbasin between 35,000 and 9,500 calen- dar years before present (cal. yr. B.P.) .................................................................................. 2 Figure 4. Map of locations of tufa sites described in this report ........................................................ 2 Figure 5. Photo of dense tufa coating volcanic cobbles in the Terraced Hills area ........................ 3 Figure 6. Photo of tubular tufas from the Popcorn Rocks site ............................................................ 3 Figure 7. Photo of tufa pillows at Doghead Rock composed of branching tufa (B) and dense (D) tufa pendants and nodules ......................................................................................................... 3 Figure 8. Photo of thinolite crystals exposed atthe base of the Blanc Tetons site ......................... 4 Figure 9. Photo of calcium-carbonate cemented thinolite crystals at the Pelican Point site ....... 4 Figure 10. Photo of large mushroom tufas at the Pelican Point site composed of layers of broc- coli-like branching tufa and dense tufa nodules .................................................................... 5 Figure 11. Photo of layers of beachrock adjacentto and north of Indian Head Rock ....................... 5 Figure 12. Photo of the southern Blanc Tetons mound .......................................................................... 6 Figure 13. Photo of tufa pillows making up a reef-like tufa on Anaho Island ..................................... 6 Figure 14. Photo of tufa tubes at the base of Dog Head Rock .............................................................. 6 Figure 15. Photo of broken tufa barrel at Needles Rocks site .............................................................. 6 Figure 16. Photo of reef-like tufa sheets and drapes near the summit of Anaho Island ................... 6 Figure 17. Photo of multiple generations of thinolite crystals inside an overturned tufa barrel at the Needles Rocks site ............................................................................................................... 7 Figure 18. Photo of the Indian Head Rock tufa mound ........................................................................... 7 Figure 19. Photo of a tufa mound at the Needles Rocks site composed of interlocking spheres and barrels ................................................................................................................................... 7 Figure 20. Photo of the Pyramid Island tufa mound ............................................................................... 8 Figure 21. Photo of the tufa reefs coating Marble Bluff ......................................................................... 8 Figure 22. Photo of cross-sectional view through a tufa reef at Marble Bluff .................................. 8 Figure 23. Schematic sequence of tufa deposition at the Blanc Tetons site .................................... 9 Figure 24. Photo of the Needles Rocks site at the north end of Pyramid Lake .................................. 9 iv Figure 25. Schematic of the relation of tufa dome heights and Marble Bluff tufa varieties and forms to overflow (sill) elevations .......................................................................................... 10 Figure 26. Photo of Anaho Island ............................................................................................................ 11 Figure 27. Photo of broken tufa mound at Dog Head Rock showing tubes and surrounding tufa that have been thoroughly cemented with younger calcium carbonate .......... " ............. 12 Figure 28. Photo of tufa mound at the Needles Rocks site, whose base has been heavil ... cemented with younger calcium carbonate .......................................................... " ............ 13 The Tufas of Pyramid Lake, Nevada By La rry Benson ABSTRACT Pyramid Lake is the site of some of the Earth's most spectacular tufa deposits. The tufas are com­ ). posed of calcium carbonate (CaC03 The large tufa mounds, reef- and sheet-like tufas formed within Pyramid Lake, between 26,000 and 13,000 years (yr) ago, when the lake was part of pluvial Lake Lahontan. The mounds are composed of large interlocking spheres that contain multiple genera­ tions of a crystalline (thinolite) variety of tufa. Over time many of the mounds have fallen apart, exposing an internal network of tubes. The tubular structures are thought to have been created when springs discharged from the bottom of Pyramid Figure 1. Pyramid Island along the east shore of Pyramid Lake. The Lake, supplying calcium that combined with car­ white band along the shore is composed of calcium carbonate bonate dissolved in lake water to form the mounds. that precipitated from the lake when its level was at or near its The reef- and sheet-like deposits contain pillow and overflow point to the Winnemucca Lake subbasin. pendant forms made up of a branching variety of tufa that often grades into dense layers or nodules. Dense layers of tufa also coat cobbles and boulders 1995). When the jet stream passes over the basin, that were deposited in near-shore shallow-water Pyramid Lake increases in size in response to the areas. The thickest tufa deposits formed at lake-bot­ increased precipitation that accompanies the frontal tom sites of ground-water discharge and at overflow systems that define the boundary of the jet stream elevations' where the lake was held at near-constant (Benson and others, 1995). The tufa deposits that levels for long periods of time. border Pyramid Lake are unique in terms of their size and beauty. By drawing attention to their his­ tory of formation we hope to alert the public to their special nature and the need for their preservation. Tufa is a rock composed of calcium carbonate ) INTRODUCTION (CaC03 that forms at the mouth of a spring, from lake water, or from a mixture of spring and lake water. Tufas in the Pyramid Lake subbasin were The U.S. Geological Survey, in cooperation first mentioned in the literature by Fremont (1845), with the Pyramid Lake Paiute Tribe, has obtained who erroneously believed they had formed above radiocarbon ages of
Load more

Recommended publications
  • White Pelicans Nesting at Honey Lake, California
    NOTES WHITE PELICANS NESTING AT HONEY LAKE, CALIFORNIA IAN C. TAIT, 260 Cardinal Road, Mill Valley, California 94941 FRITZ L. KNOPF, School of Biological Sciences,Oklahoma State University, Stillwater, Oklahoma 74074 JOSEPH L. KENNEDY, W. F. Sigler and Associates,Inc., 900 West First Street, Reno, Nevada 89503 The breedingstatus of the White Pelican(Pelecanus erytbrorbyncbos) has been reviewedin papersby Thompson(1933), Liesand Behle(1966) and Sloan(1973). These papersshow that, although the number of breedingbirds may fluctuate considerablyin any one colony from year to year, coloniestend to remainin an- cestrallocations. For example,it appearsthat the only new colony established west of the Rockiesbetween 1965 and 1972 was at Crump Lake, Oregon. We were thus surprisedto find a White Pelican nesting colony on Hartson Reservoir, adjacent to Honey Lake, LassenCounty, California, in June 1976. Although pelicans reportedly laid eggsat Honey Lake in the early 1950s (A.M. Lapp pers. comm.), this appearsto be the first record of a productivecolony at this location. HoneyLake is a salinesink with a waterarea of approximately120 km2 in normal rainfall years and receivesthe flows of severalstreams draining the eastern escarpmentof the DiamondMountains at the northernend of the SierraNevada. It is locatedabout 80 km NNW of PyramidLake, Nevada,and 200 km SSE of the Klamath-ClearLake complex on the California-Oregonborder, the locationsof the closest White Pelican colonies. The colonydiscovered on 5 June1976 waslocated on a sparselyvegetated pen- insulaabout 50 m wide by 300 m long, runningparallel to the easternshoreline of HartsonReservoir. The pelicanbreeding area was shared with Double-crestedCor- morants(Pbalacrocorax auritus), Snowy Egrets (Egretta tbula), Black-crowned Night Herons (Nycticorax nycticorax), Ring-billedGulls (Larusdelawarensis) and CaspianTerns (Sterna caspia).
    [Show full text]
  • Northern Paiute and Western Shoshone Land Use in Northern Nevada: a Class I Ethnographic/Ethnohistoric Overview
    U.S. DEPARTMENT OF THE INTERIOR Bureau of Land Management NEVADA NORTHERN PAIUTE AND WESTERN SHOSHONE LAND USE IN NORTHERN NEVADA: A CLASS I ETHNOGRAPHIC/ETHNOHISTORIC OVERVIEW Ginny Bengston CULTURAL RESOURCE SERIES NO. 12 2003 SWCA ENVIROHMENTAL CON..·S:.. .U LTt;NTS . iitew.a,e.El t:ti.r B'i!lt e.a:b ~f l-amd :Nf'arat:1.iern'.~nt N~:¥G~GI Sl$i~-'®'ffl'c~. P,rceP,GJ r.ei l l§y. SWGA.,,En:v,ir.e.m"me'Y-tfol I €on's.wlf.arats NORTHERN PAIUTE AND WESTERN SHOSHONE LAND USE IN NORTHERN NEVADA: A CLASS I ETHNOGRAPHIC/ETHNOHISTORIC OVERVIEW Submitted to BUREAU OF LAND MANAGEMENT Nevada State Office 1340 Financial Boulevard Reno, Nevada 89520-0008 Submitted by SWCA, INC. Environmental Consultants 5370 Kietzke Lane, Suite 205 Reno, Nevada 89511 (775) 826-1700 Prepared by Ginny Bengston SWCA Cultural Resources Report No. 02-551 December 16, 2002 TABLE OF CONTENTS List of Figures ................................................................v List of Tables .................................................................v List of Appendixes ............................................................ vi CHAPTER 1. INTRODUCTION .................................................1 CHAPTER 2. ETHNOGRAPHIC OVERVIEW .....................................4 Northern Paiute ............................................................4 Habitation Patterns .......................................................8 Subsistence .............................................................9 Burial Practices ........................................................11
    [Show full text]
  • History of Lahontan Cutthroat Trout in Spring Creek, Utah
    Spring Creek Population History of the Pyramid Lake Rediscovery (Again) Unfortunately, given its small size, the trout Lahontan Cutthroat population at Spring Creek has a very low In October 2009, a team from Weber State probability of survival. It lacks the numbers The Lahontan cutthroat trout, Oncorhynchus University in conjunction with personnel and space necessary to maintain sufficient clarkii henshawi, is native to the Lahontan Basin from the DWR identified several specimens genetic diversity. It is believed that for a on the border between California and Nevada. believed to be of a pure or hybrid strain of mountain stream cutthroat population to For thousands of years it thrived and played the Pyramid Lake Lahontan cutthroat trout survive it must have a minimum of 3.3 km an important economic and cultural role in Spring Creek in Uintah, Utah. Using of habitat and an abundance in the area of among the Native American tribes of the electrofishers and dip nets, a 600 m stretch 0.3 fish per meter.3 Based on our region. The largest strain of this fish of the stream was sampled. A maximum observations, the Spring Creek population originated in Pyramid Lake, in western of 16 different individuals was collected in A Unique Environment has a maximum abundance of 0.1 fish/m Nevada and has reached recorded weights of two sampling trips. The fish appeared to Spring Creek’s unique vegetation and only 200 m of habitat. However, against up to 41 pounds, making it the largest “The Fish that Won’t Die” be restricted to a 200 m stretch.
    [Show full text]
  • National Greater Sage-Grouse Planning Strategy Northeast California Deer and Pronghorn Habitat
    National Greater Sage-Grouse Planning Strategy Northeast California Deer and Pronghorn Habitat Deer and pronghorn use areas are shown for the strategies for other key wildlife of concern in the planning Northeastern California and Northwestern Nevada portion area. Note that breaks in the data are seen at the of the Nevada and Northeast California Sub-Region. California-Nevada state line due to differences in data Greater sage-grouse management and conservation collection between the states. strategies can be developed in concert with management Tulelake Tule Lake Goose Lake Macdoel Clear Lake Reservoir Fort Bidwell Davis Creek Upper Lake Lake City Cedarville Alturas Canby Middle Alkali Lake Eagleville Lookout Likely Lower Lake Adin Nubieber Mcarthur Madeline Fall River Mills Cassel Burney Termo Ravendale Eagle Lake Susanville Standish Wendel Chester Westwood Janesville Honey Lake Lake Almanor Canyondam Milford Greenville Herlong Crescent Mills Taylorsville Belden Twain Doyle Meadow Valley Quincy Portola Vinton Blairsden-Graeagle Chilcoot Clio Calpine Loyalton Sierraville Downieville Sierra City Goodyears Bar Alleghany Floriston 0 10 Soda Springs Norden Truckee Miles January 2012 No warranty is made by the BLM for the use of the data for purposes not intended by the BLM. Deer (critical summer range, critical winter range, fall holding area, and fawning ground) Pronghorn (kidding grounds, migration corridors, stress migration corridors, and winter range) 75% breeding bird density 100% breeding bird density BLM Field Office boundary Source: BLM 2011, NDOW data acquired from BLM.
    [Show full text]
  • Cui-Ui Recovery Plan
    1 ESA 81 RECOVERY PLAN DRAWING BY: JOSETTECUILEY I CUI-UI RECOVERY PLAN Prepared by the Cui-ui Recovery Team December 1977 TEAM MEMBERS Earl Pyle, Team Leader, U.S. Fish and Wildlife Service, Reno, Nevada John Frazier, Pyramid Lake Paiute Indian Tribe, Nixon, Nevada Donald King, U.S. Fish and Wildlife Service, Reno, Nevada Kay Johnson, Nevada Department of Fish and Game, Reno, Nevada Dale Lockard, Nevada Department of Fish and Game, Reno, Nevada Thomas J.. Trelease, Team Advisor, Verdi , Nevada Published by U.S. Fish and Wildlife Service Endangered Species Program Region 1 Portland, Oregon Approved Director, U.S. Fish & Wildlife Service Title Date TABLE OF CONTENTS Page PART I. INTRODUCTION .................. 1 Former Status ................. 2 Reasons for Decline of the Fishery ....... 3 Figure 1 .................... 4 PART II . THE RECOVERY PLAN ............... Objectives and Rationale ............ Accomplishments ................ Specific Problem Areas ............. Recovery Plan Out1 ine ............. Action Diagram ................. Action Narrative ................ PART I11 . SCHEDULE OF PRIORITIES. RESPONSIBILITIES & COSTS APPENDIX A . REFERENCES CITED ................ APPENDIX B . PROPOSED ESSENTIAL HABITAT ........... Maps . Proposed Essential Habitat ....... APPENDIX C . LETTERS OF COMMENT ............... CUI-UI RECOVERY PLAN PART I INTRODUCTION The history of the cui-ui 1 (Chasmistes cujus) and the Pyramid Lake Paiute Indian Tribe is so intimately entwined that the unwritten, ancestral name for the tribe is Kuyuidokado (Wheeler, 1969) or Ku-yu-wi-kut-teh (Hermann, 1973) meaning "sucker eaters". Spawning runs of cui-ui and cutthroat trout (mclarki provided a readily available and dependable source of food. There can be no doubt the shores of Pyramid Lake were highly val- ued as a haven against the uncertainty and hardship of obtaining food in the arid and often inhospitable lands of the Great Basin.
    [Show full text]
  • 2019-2020-Fishing-Season-Press-Release.Pdf
    Press Release For Immediate Release: 09/26/19 Primary Contact: Anthony Sampson, Sr., Tribal Chairman, Pyramid Lake Paiute Tribe Administration Hours 8 am – 430 pm Phone: (775) 574-1000 Fishing Season Opens October 1, 2019 Help Stop the Spread of Aquatic Hitchhikers…Clean, Drain, Dry! Nixon, NV: The Pyramid Lake Paiute Tribe is pleased to announce opening Fishing Season at Pyramid Lake, October 1, 2019 – September 30, 2019. Lahontan Cutthroat Trout (LCT) season is October 1, 2019 through June 30, 2020. The Tribe has designated the beaches from Popcorn to Warrior Point as open to the public for recreational activities including fishing, boating, camping and day use. The beaches on the south and east sides of the Pyramid Lake remain closed to the public, including Dago and Howard’s beaches, the Needles and the Willows. The abundant snowpack over this year allowed much needed attraction flows for spawning Pyramid Lake Fish. Approximately 2,000 mature Lahontan Cutthroat Trout were released to spawn naturally into the Truckee River this past spring. The Pyramid Lake Fisheries staff also obtained 1 million eggs from this Spring’s spawning events, resulting in 550,000 Lahontan Cutthroat Trout. The Staff at Numana Hatchery also released 115,000 small fry into the lower Truckee River in June. Fishing, boating, camping and day use permits are available at the Tribe’s Ranger station and Marina in Sutcliffe, I-80 Smokeshop in Wadsworth, and the Nixon Store. Permits are also available at several local sports and convenience stores. A list of permit sellers can be found here: http://www.pyramidlake.us/pyramid-lake-permits.html Permits can also be purchased on-line at the following link: https://plpt.naga.net/online/ Permits are non-refundable and non-transferrable.
    [Show full text]
  • Truckee River 2007
    NEVADA DEPARTMENT OF WILDLIFE STATEWIDE FISHERIES MANAGEMENT FEDERAL AID JOB PROGRESS REPORT F-20-54 2018 TRUCKEE RIVER WESTERN REGION NEVADA DEPARTMENT OF WILDLIFE, FISHERIES DIVISION ANNUAL PROGRESS REPORT Table of Contents SUMMARY ................................................................................................................... 1 BACKGROUND .............................................................................................................. 1 OBJECTIVES .................................................................................................................. 3 PROCEDURES ............................................................................................................... 3 FINDINGS ................................................................................................................... 5 MANAGEMENT REVIEW ............................................................................................. 17 RECOMMENDATIONS ................................................................................................. 18 NEVADA DEPARTMENT OF WILDLIFE, FISHERIES DIVISION ANNUAL PROGRESS REPORT State: Nevada Project Title: Statewide Fisheries Program Job Title: Truckee River Period Covered: January 1, 2018 through December 31, 2018 SUMMARY On April 1, 2018, the designated end of the snow-measuring season, the snowpack in the Truckee River Basin stood at 75% of the median for that date and the amount of precipitation for the year stood at 90% of average. While the 2017/18 winter was slightly
    [Show full text]
  • Life History of the Cui-Ui, Chasmistes Cujus Cope, in Pyramid Lake, Nevada: a Review
    Great Basin Naturalist Volume 45 Number 4 Article 1 10-31-1985 Life history of the cui-ui, Chasmistes cujus Cope, in Pyramid Lake, Nevada: a review William F. Sigler W.F. Sigler and Associates Inc., Logan, Utah Steven Vigg University of Nevada, Reno Mimi Bres George Washington University, Washington, D.C. Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation Sigler, William F.; Vigg, Steven; and Bres, Mimi (1985) "Life history of the cui-ui, Chasmistes cujus Cope, in Pyramid Lake, Nevada: a review," Great Basin Naturalist: Vol. 45 : No. 4 , Article 1. Available at: https://scholarsarchive.byu.edu/gbn/vol45/iss4/1 This Article is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. The Great Basin Naturalist Published AT Provo, Utah, by Bricham Young University ISSN 0017-3614 Volume 45 31 October 1985 No. 4 LIFE HISTORY OF THE CUI-UI, CHASMISTES CUJUS COPE, IN PYRAMID LAKE, NEVADA: A REVIEW William F". Sigler', Steven Vigg", and Minii Bres' Abstract—The cui-ui, Chasmistcs ciijus Cope, a member of the .sucker family and endemic to Pyramid Lake, Nevada, is listed as endangered by the U.S. Fish and Wildlife Service. Cui-ui was once a major source of sustenance for native Americans, who have inhabited the Lahontan region for at least 11,000 years. The Northern Paiutes developed sophisticated fishing technology to harvest this resource.
    [Show full text]
  • Water Budget and Salinity of Walker Lake,Western Nevada
    ENT OF T TM H R E A IN P E T E D U.S. Geological Survey Water Budget and Salinity of R I O S. Fact Sheet FS-115-95 R U. G Walker Lake,Western Nevada E Y O E L V O R GICAL SU Walker Lake (fig. 1) is one of the rare although this site does not have the In some valleys, local streams also perennial, terminal lakes in the Great longest streamflow record, no upstream contribute surface-water flow. Thus, Basin of the western United States. The reservoirs or irrigation diversions exist and estimates of surface-water consumption in lake is the terminus for all surface-water streamflow has been measured contin- table 2 are minimum values, because local and ground-water flow in the Walker uously at the site since 1939. Long-term streamflow in valleys may not have been River Basin Hydrographic Region (fig. 2) average annual flows were estimated by measured. In Smith Valley, 8,700 acre- that is not consumed by evaporation, comparing the average annual flow at a ft/yr of Desert Creek flow has been in- sublimation, or transpiration. stream-gaging station with the average cluded in the water budget. In Antelope annual flow at site 4 for years of concur- Valley, the contribution from Mill and The concentration of dissolved solids rent record. Then, this partial record was Slinkard Creeks is unknown, so the difference of 15,000 acre-ft between (salts) in the lake and the lake-surface adjusted to a long-term average using the average inflow and outflow underesti- altitude fluctuate primarily in response 55-year average at site 4.
    [Show full text]
  • Paiute Tribe Floodplain Management Plan 2016
    Pyramid Lake Paiute Tribe Floodplain Management Plan 2016 Pyramid Lake Paiute Tribe Technical Advisory Group November 18, 2016 0 | Page This page is intentionally left blank. 0 TABLE OF CONTENTS ACRONYMS ....................................................................................................................................................... IV DEFINITIONS ..................................................................................................................................................... IV INTRODUCTION.................................................................................................................................................. 1 DESCRIPTION OF THE AREA .............................................................................................................................................. 1 Water Rights ......................................................................................................................................................... 3 Land Use Summary ............................................................................................................................................... 3 Truckee River Fish Species ................................................................................................................................... 4 Endangered Fish Species ...................................................................................................................................... 4 Vegetation ............................................................................................................................................................
    [Show full text]
  • Winnemucca District Proposed Resource Management Plan and Final Environmental Impact Statement DOI-BLM-NV-W000-2010-0001-EIS
    BLM Winnemucca District Proposed Resource Management Plan and Final Environmental Impact Statement DOI-BLM-NV-W000-2010-0001-EIS Volume 2: Chapters 3, 4 Winnemucca District, Nevada District, Winnemucca August 2013 Winnemucca MISSION STATEMENT To sustain the health, diversity, and productivity of the public lands for the use and enjoyment of present and future generations. BLM/NV/WN/ES/13-11+1793 Volume 2 of 4 TABLE OF CONTENTS Section Page 3. AFFECTED ENVIRONMENT ............................................................................................. 3-1 3.1 Introduction ...................................................................................................... 3-1 3.2 Resources ....................................................................................................... 3-1 3.2.1 Air Quality ............................................................................................ 3-2 3.2.2 Geology ............................................................................................. 3-14 3.2.3 Soil Resources .................................................................................. 3-18 3.2.4 Water Resources ............................................................................... 3-22 3.2.5 Vegetation – General ......................................................................... 3-36 3.2.6 Vegetation – Forest/Woodland Products ........................................... 3-41 3.2.7 Vegetation – Invasive and Noxious Species ...................................... 3-42 3.2.8 Vegetation
    [Show full text]
  • Pyramid Lake Watercraft Inspection Station Environmental Assessment LO-2014-1035
    Pyramid Lake Watercraft Inspection Station Environmental Assessment LO-2014-1035 U.S. Department of the Interior Bureau of Reclamation Lahontan Basin Area Office 705 North Plaza Street, Room 320 Carson City, Nevada 89701 Mission Statements The mission of the Department of the Interior is to protect and provide access to our Nation’s natural and cultural heritage and honor our trust responsibilities to Indian Tribes and our commitment to island communities. The mission of the Bureau of Reclamation is to manage, develop, and protect water and related resources in an environmentally and economically sound manner in the interest of the American public. Table of Contents Section 1 Introduction ..........................................................................................................1 1.1 Background ....................................................................................................................1 Pyramid Lake Reservation ...................................................................................................1 Pyramid Lake Fisheries Department ....................................................................................1 Anaho Island ........................................................................................................................1 Aquatic Invasive Species .....................................................................................................2 Environmental Assessment ..................................................................................................4
    [Show full text]