DOCSLIB.ORG

Discharge, Sediment, and Water Chemistry in Clear Creek, Western Nevada, Water Years 2013–16

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Discharge, Sediment, and Water Chemistry in Clear Creek, Western Nevada, Water Years 2013–16 Prepared in cooperation with the Nevada Department of Transportation Discharge, Sediment, and Water Chemistry in Clear Creek, Western Nevada, Water Years 2013–16 Scientific Investigations Report 2018–5050 U.S. Department of the Interior U.S. Geological Survey Cover: U.S. Geological Survey hydrologic technician Dan Riddle collecting suspended- sediment samples with a DH-48 sampler during April spring runoff conditions, Clear Creek, Western Nevada, 2017. Discharge, Sediment, and Water Chemistry in Clear Creek, Western Nevada, Water Years 2013–16 By Jena M. Huntington, Daniel J. Riddle, and Angela P. Paul Prepared in cooperation with the Nevada Department of Transportation Scientific Investigations Report 2018–5050 U.S. Department of the Interior U.S. Geological Survey U.S. Department of the Interior RYAN K. ZINKE, Secretary U.S. Geological Survey William H. Werkheiser, Deputy Director exercising the authority of the Director U.S. Geological Survey, Reston, Virginia: 2018 For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit https://www.usgs.gov or call 1–888–ASK–USGS. For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner. Suggested citation: Huntington, J.M., Riddle, D.J., and Paul, A.P., 2018, Discharge, sediment, and water chemistry in Clear Creek, western Nevada, water years 2013–16: U.S. Geological Survey Scientific-Investigations Report 2018–5050, 55 p., https://doi.org/10.3133/sir20185050. SSN 2328-0328 (online) iii Contents Abstract ...........................................................................................................................................................1 Introduction.....................................................................................................................................................1 Purpose and Scope ..............................................................................................................................2 Previous Investigations........................................................................................................................2 Description of Study Area ...................................................................................................................5 Surface-Water Hydrology ............................................................................................................................5 Sediment and Water-Quality Data Collection Methods ........................................................................10 Discrete Suspended Sediment, Bedload, and Water Chemistry Samples ................................10 Suspended-Sediment and Water-Chemistry Quality Assurance .....................................10 Suspended-Sediment Auto-Sampler ...............................................................................................11 Suspended-Sediment Autosampler Quality Assurance .....................................................11 Bed-Sediment and Passive Samples .............................................................................................16 Data Evaluation Methods ..................................................................................................................17 Sediment Concentration and Transport ...................................................................................................17 Suspended-Sediment Concentrations ............................................................................................17 Discrete Suspended-Sediment Concentrations ...................................................................17 Storm-Event Autosampler Sample Concentrations .............................................................24 Sediment Loads ...................................................................................................................................25 Suspended-Sediment Loads ....................................................................................................25 Bedload Sediment .....................................................................................................................31 Total Sediment Loads ................................................................................................................34 Water -Quality Characteristics ...................................................................................................................35 Bed-Sediment and Semi-Permeable Membrane Device Polynuclear Aromatic Hydrocarbons.........................................................................................................................41 Fire Chemistry ......................................................................................................................................46 Summary and Conclusions .........................................................................................................................51 References Cited..........................................................................................................................................52 iv Figures 1. Map showing Clear Creek drainage basin, land ownership, and sampling sites near Carson City, Nevada. ...................................................................................................................3 2. Map showing Clear Creek streambed profile, locations of three sampling sites along profile locations, and extents of historical and recent wildland fires in the Clear Creek discharge basin, western Nevada, 1984–2014 ...................................................4 3. Map showing the locations and types of selected erosion mitigation work completed by the Nevada Department of Transportation, Clear Creek drainage basin, western Nevada, water years 2010–16 .........................................................................6 5. Graph showing mean monthly discharge for water years 1949–62 and 1990–2012 in boxplots and mean monthly discharge for water years 2013–16 in line graphs, at site 2, Clear Creek, western Nevada .........................................................................................8 4. Graph showing mean annual discharge for periods of record at site 2, water years 1949–62 and 1990–2016 ................................................................................................................8 6. Graph showing fow duration at site 2, Clear Creek, western Nevada, water years 1949–2003, 2004–07, 2010–12, and 2013–16 ...............................................................................9 7. Storm hydrographs showing autosampler and discretely collected samples sent in for suspended-sediment analysis, site 2, Clear Creek, western Nevada ..........................14 8. Graphs showing relation between discrete and autosampler-collected suspended-sediment concentrations for unadjusted data and data adjusted using three flow related cross-section coefficients, Clear Creek, western Nevada ................15 9. Graphs showing daily mean discharge and types of samples collected at site 2 for water years 2013, 2014, 2015, and 2016 ...................................................................................18 10. Graphs showing suspended-sediment concentrations at sites 1 , 2 , and 3, Clear Creek, western Nevada, water years 2004–07, 2010–12, and 2013–16 ..............................22 11. Graph showing comparison of discrete and cross-section adjusted autosampler suspended-sediment concentrations, site 2, Clear Creek, western Nevada, 2004–07 and 2010–16 .................................................................................................................................25 12. Graph showing percentage of silt as determined using the sand-fine break analysis in suspended-sediment samples collected discretely and using the autosampler at site 2, Clear Creek, western Nevada, 2014–16 .......................................................................26 13. Graphs showing distribution of suspended-sediment loads at sites 1, 2, and 3 on Clear Creek, western Nevada, 2004–07, 2010–12, and 2013–16, and 2004–16 ..................27 14. Graphs showing relation between suspended-sediment load and instantaneous discharge for site 1, site 2, and site 3, Clear Creek, western Nevada ...............................29 15. Graphs showing suspended-sediment loads measured under specified ranges of discharge at site 1, site 2, and site 3, Clear Creek, western Nevada, water years 2004–07 and 2010–16 ..................................................................................................................30 16. Graph showing relation between bedload and discharge at site 2, Clear Creek, western Nevada, water years 2004–07, 2010–12, and 2013–16 ...........................................32 17. Graph showing sediment composition and associated discharge at Clear Creek site 2 and 3,western Nevada, water years 2013–16 .....................................................................33 18. Graph showing annual Clear Creek total sediment load and discharge for site 2, western Nevada, 2004–07
Load more

Recommended publications
  • LAKE TAHOE BASIN MANAGEMENT UNIT Travel Analysis Process
    LAKE TAHOE BASIN United States MANAGEMENT UNIT Department of Agriculture Forest Service Travel Analysis Process January 2012 Kjar, J. Craig. 2011. Travel Analysis Process. Boise, Idaho. Prepared for U.S. Forest Service Lake Tahoe Basin Management Unit, South Lake Tahoe, California. TABLE OF CONTENTS Chapter 1 – Setting Up the Analysis ....................................... 1 Objectives ................................................................................................................................... 1 Scale ............................................................................................................................................ 1 How the Report Will be Used ..................................................................................................... 2 Roles of Specialists ..................................................................................................................... 2 Identification of Information Sources ......................................................................................... 2 Analysis Plan .............................................................................................................................. 3 Chapter 2 - Describing the Situation ....................................... 4 Existing Road System and Direction .......................................................................................... 4 Forest Highways and Scenic Byways ......................................................................................... 6 Forest Highways
    [Show full text]
  • Bat Survey: Scientists Find Variety of Species, Page 3
    Award winning! Bat survey: Scientists find variety of species, page 3 Winter 2014 Bi-state compact to preserve Tahoe STEPS TOWARD REVITALIZATION turns 45 years old Staff Report Redevelopment projects expected to aid environment, economy The partnership between California and Nevada that created the Tahoe Regional Planning Agency By Devin Middlebrook (TRPA) turned 45 years old in Tahoe Regional Planning Agency December 2014 and is approaching a half-century of progress in the protection and restoration of Lake Lake Tahoe’s communities have struggled Tahoe and its treasured environment. for decades from environmental, economic, and President Richard Nixon signed social pressures. The advent of Native American the bi-state compact to create the gaming throughout Northern California drove TRPA on Thursday, Dec. 18, 1969. massive casino job losses, which were compounded Nixon’s signature in the Oval Office followed the compact’s ratification by the recent recession. To many, a visible clue by Congress, approval by both was the number of run-down or vacant buildings states’ legislatures, and signatures of around the Lake. Many of these buildings were former governors Ronald Reagan in constructed in the 1960s, prior to the Tahoe Regional California and Paul Laxalt in Nevada. Planning Agency being established, during a period U.S. Sen. Alan Bible (D-Nev.) of rampant growth with a lack of development introduced legislation to approve the bi-state compact in Congress. Bible regulations. Fifty years later, as the recession took called Nixon’s signature of the bill hold, the Region looked tired and in disrepair. “the best news possible for those Times are changing.
    [Show full text]
  • 2019 Rtp Final Awards
    2019 RTP FINAL AWARDS Project Title Applicant Grant Request Awards Trail Education for Northern NV Students Sierra Nevada Journeys$ 24,971.00 $24,971.00 Inspiring Next Gen of Enviro Stewards Tahoe Rim Trail Assoc.$ 30,015.02 $20,000.00 Lincoln Co. Rec Trails Mapping & Info Lincoln County Regional Development Authority$ 39,525.00 $10,978.12 Nevada Non‐Motorized Trail Mapping Great Basin Institute$ 13,991.04 $13,991.04 USFS Moto Travel Mgmt Route Signage Phase II Great Basin Institute$ 100,120.79 $100,120.79 Prison Hill Rec Area OHV Education & Design National Off‐HWY Vehicle Conservation Council$ 201,409.73 $100,000.00 Inyo Nat. Forest Planning/Storm Drainage Repairs Inyo National Forest$ 74,200.00 $37,100.00 Lincoln Co. Rec Trails Mapping & Info Lincoln County Regional Development Authority$ 39,525.00 $28,546.88 Tread Lightly! Nevada Tread Lightly!$ 129,505.00 $42,600.00 Outdoor Ethics Enthusiasts & OHV Safety Nevada Outdoor School$ 81,865.00 $81,865.00 Boulder City Railway Trail Boulder City Economic Vitality Commission$ 593,000.00 $100,000.00 Lake Tahoe NV State Park East Shore Trail Maint. Great Basin Institute$ 34,172.75 $34,172.75 Ice Age Fossils Interpretive Trail Signs NDSP$ 203,400.00 $166,802.97 Perimeter Trail Phase 2 USFS‐Lake Tahoe Basin Management Unit$ 113,000.00 $85,000.00 Toiyabe Crest Trail Maintenance Great Basin Institute$ 59,243.62 $59,243.62 East Walker Recreation Enhancement Walker Basin Conservancy$ 158,170.82 $158,170.82 Peavine Trail Enhancement & Maint. Biggest Little Trail Stewardship$ 48,317.00 $48,317.00 Snow Valley Peak/Diamond Peak Rehab Tahoe Rim Trail Assoc.$ 58,085.97 $58,085.97 Griffith Peak Trail Rebuild Friends of Nevada Wilderness$ 100,274.00 $100,274.00 Table Mt.
    [Show full text]
  • An Inventory and Baseline Monitoring of the Butterfly Fauna of the Carson Range, with Emphasis on the Lake Tahoe Basin Nevada State and Adjacent Lands
    FY 2007 LAKE TAHOE LICENSE PLATE PROGRAM BUTTERFLY INVENTORY PROJECT An Inventory and Baseline Monitoring of the Butterfly Fauna of the Carson Range, with Emphasis on the Lake Tahoe Basin Nevada State and Adjacent Lands DRAFT REPORT Principal Investigators: T. Will Richardson, PhD. and Dennis D. Murphy, PhD. Department of Biology University of Nevada, Reno Contact: Will Richardson 16810 Glenshire Dr. Truckee, CA 96161 530.412.2792 [email protected] TABLE OF CONTENTS TABLE OF CONTENTS .................................................................................................... 2 Introduction ......................................................................................................................... 3 Methods............................................................................................................................... 4 Focal sites........................................................................................................................ 4 Sampling methods:...................................................................................................... 4 General collection ........................................................................................................... 6 Results and Discussion ....................................................................................................... 6 The Carson Range Butterfly Fauna ................................................................................. 6 Focal Site Sampling .......................................................................................................
    [Show full text]
  • Education Working Group Meeting Notes Wednesday, June 4, 2014 1:30 PM – 4:30 PM CWSD Conference Room
    Education Working Group Meeting Notes Wednesday, June 4, 2014 1:30 PM – 4:30 PM CWSD Conference Room Present: Ann Bollinger, Carson City Open Space Tess Braun, Alpine Watershed Group Linda Conlin, River Wranglers Brenda Hunt, Carson Water Subconservancy District (CWSD) Ed James, CWSD Leah Kniffen, Dayton Valley Conservation District Toni Leffler, CWSD Courtney Walker, CWSD 1. Welcome and Introductions - Introductions were made around the room. 2. Brief Announcements/Two Minute Updates a. Update on Invasive Species Month (Courtney) – Carson City Library display advertisement on Caron City Community Center reader board three weekly newspaper articles in the Nevada Appeal, Record Courier, Leader Courier and Lahontan Valley News by Joanne Skelley Douglas County Invasive Species BBQ on 6/27/14 Actions: b. Conserve Carson River Workdays Wrap-up (Linda) – Carson City High School and Churchill County High School spring time events conducted the end of April last year but in May this year. The scheduling made big difference because there is so little time on the school calendar in May. Lahontan Elementary in Churchill County with freshmen FFA members at Rambling River Ranch, had a work day at the conservation easement owned by Norm and Sue Frey. The students constructed wood duck boxes with Fish and Wildlife specialists. They monitored a box on the ranch that had just hatched and watched them peck their way out and get banded. They wanted to do planting at Rambling River Ranch but the reduced water wouldn’t allow it this year. There was a challenge with the work day at Fuji Park/Clear Creek.
    [Show full text]
  • Evaluation of Strategies to Control Erosion Along U.S. Highway 50 Between Carson
    NDOT Research Report Report No: RDT06-005 Evaluation of Strategies to Control Erosion along U.S. Highway 50 between Carson City and Lake Tahoe February 2006 Prepared by Research Division Nevada Department of Transportation 1263 South Stewart Street Carson City, Nevada 89712 This work was sponsored by the Nevada Department of Transportation. The contents of this report reflect the views of the authors, who are responsible for the facts and the accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the State of Nevada at the time of publication. This report does not constitute a standard, specification, or regulation. i ABSTRACT Severe erosion is occurring at several locations in the Clear Creek watershed along U.S. Highway 50 between Carson City and Lake Tahoe. Surface water runoff from seasonal snowmelt or infrequent high intensity rain events has caused erosion and the transport of substantial quantities of soil and sediment. Erosion has caused problems related to slope stability along roadways and increased maintenance requirements, especially those associated with drainage structures. The physical characteristics of the upper Clear Creek watershed including steep slopes, thin soil sections, and highly weathered bedrock allows for erosion to proceed unchecked. The erosion has manifested itself in the form of deep gullies and rilled slopes. Corrective action must be taken to limit the erosion of soil and transport of sediment during runoff events. The Hydraulics Section of the Nevada Department of Transportation (NDOT) has committed significant funding over the next several years to implement erosion control strategies. Numerous erosion control products are commercially available.
    [Show full text]
  • Carson River W a T E R S H E D Floodplain Management
    CARSON RIVER W AT E R S H E D FLOODPLAIN MANAGEMENT PLAN 2018 Prepared by: Prepared for: Carson Water Subconservancy District, Alpine County (California), Carson City, Churchill County, Douglas County, Lyon County, Storey County (Nevada). TABLE OF CONTENTS PREFACE ............................................................................................................................................................................... 6 EXECUTIVE SUMMARY ......................................................................................................................................................... 7 1.0 INTRODUCTION AND BACKGROUND ............................................................................................................................ 9 1.1 STRATEGIES ............................................................................................................................................................. 11 1.2 REGIONAL APPROACH AND PLAN ADOPTION ......................................................................................................... 12 1.3 WATERSHED CHARACTERISTICS .............................................................................................................................. 12 1.4 ECONOMIC IMPACTS ............................................................................................................................................... 15 2.0 FEDERAL EMERGENCY MANAGEMENT AGENCY (FEMA) ...........................................................................................
    [Show full text]
  • Forest Pest Conditions in Nevada 2008
    United States Department Forest Pest Conditions in of Agriculture Nevada 2008 Forest Service State and Private Forestry Forest Health Protection Intermountain Region R4-OFO-TR-05-00 State of Nevada Division of Forestry Department of Conservation and Natural Resources Front Cover Photos Mountain pine beetle on whitebark pine in the Jarbidge Mountains, July 2008 – Rob Cruz & Gail Durham; Aspen and Curlleaf mountain mahogany decline damage in the Toquima Range - July, 2008 by Gail Durham Forest Health Specialists Forest Health Protection Email: [email protected] USDA Forest Service Valerie DeBlander, Forestry Technician Ogden Field Office Email: [email protected] Forest Health Protection 4746 S 1900 E John Guyon II, Pathologist Ogden, UT 84403 Email: [email protected] Phone 801-476-9720 Elizabeth Hebertson, FAX 801-479-1477 Entomologist/Pathologist Email: [email protected] Steve Munson, Group Leader Email: [email protected] Kjerstin Skov, Entomologist Email: [email protected] Darren Blackford, Entomologist Nevada Division of Forestry Department of Conservation and Natural Resources State Headquarters 2478 Fairveiw Dr. Carson City, NV 89701 Gail Durham, Forest Health Specialist Email: [email protected] Phone: 775-684-2513 Rich Harvey, Deputy State Forester Email: [email protected] Phone: 775-684-2507 i Compiled by: Gail Durham, Forest Health Specialist, NDF Edited by: Kjerstin Skov, Entomologist, USDA-FHP With Contributions from: Dick Halsey, FS FHP GIS Specialist John Guyon II, FS FHP Pathologist Jeff Knight, Nevada State Entomologist Dr. Shouhua Wang, Nevada State Pathologist April 2009 i Table of Contents Introduction and Summary ...........................................................................................1 STATUS OF INSECTS .................................................................................................9 Insects: Native .............................................................................................................................
    [Show full text]
  • Values at Risk
    Carson Range Fuel Reduction and Wildfire Prevention Strategy Section 6: Values at Risk Communities, Safety, and Infrastructure Within the 222,300-acre Carson Range planning area, 128,000 acres (57 percent) are within the wildland-urban interface. Of the nearly 100, 000 homes in the area, approximately 60,000 are considered to be at risk to uncharacteristic wildfire. Depending on the community, average property values vary between $130,000 and $350,000, with many homes worth more than one million dollars. Including homes and businesses, all private and commercial property values at risk in the analysis area are estimated to be well over 6.5 to 9 billion dollars. In addition to homes, present conditions diminish firefighter safety, and threaten community infrastructure. In 2005, Resource Concepts Inc. completed the Nevada Community Wildfire/Risk Assessment. This assessment found that 15 assessed communities are in the analysis area and detailed risk assessments were prepared that describe community infrastructure that is at risk. In addition, based on the assessment of values at risk by the planning cadre, communities in the Mount Rose Area, around Carson City, around Galena, and the outskirts of Reno were determined to be the most at risk to uncharacteristic fire behavior. However, it is the planning cadre’s assessment, that all communities within or adjacent to the defined wildland-urban interface of the Carson Range analysis area or the Nevada Community Wildfire/Risk Assessment are at risk. For example, outside of the Carson City area, there are many homes abutting the wildland-urban interface, and a few subdivisions with only one access road.
    [Show full text]
  • Lepidoptera of North America 16 Butterflies of the Sierra Nevada
    Lepidoptera of North America 16 Butterflies of the Sierra Nevada By Ken Davenport Contributions of the C.P. Gillette Museum of Arthropod Diversity Colorado State University Lepidoptera of North America 16 Butterflies of the Sierra Nevada by Ken Davenport 8417 Rosewood Avenue Bakersfield, California 93306-6151 Museum Associate C.P. Gillette Museum of Arthropod Diversity Department of Agricultural Biology Colorado State University Fort Collins, Colorado 80523-1177 March 10, 2020 Front cover: Indra Swallowtail, Papilio indra Reakirt Image courtesy of Paul A. Opler, Paul and Evi Nature Photography ISSN 1084-8819 This publication and others in this series are open access and may be accessed and downloaded at no cost at https://dspace.library.colostate.edu/discover/contributions ofthec.p.Gillettemuseum Copyright 2020© BUTTERFLIES OF THE SIERRA NEVADA IN CALIFORNIA AND NEVADA. By Ken Davenport Museum Associate, C. P. Gillette Museum of Arthropod Diversity, Colorado State University. Abstract: This publication covers the butterfly fauna of the Sierra Nevada mountain range in eastern California and a small area of the Carson Spur in western Nevada. At present (2019), 192 species, 104 subspecies and 15 segregates are known to have occurred within the range at least twice. Five additional species have been recorded at least once in the Sierra Nevada. This publication covers distributions of these butterflies within the Sierra Nevada and three National Parks, their habitats, flight periods and taxonomic issues based on current knowledge. THE SIERRA NEVADA The Sierra Nevada occupies 28,000 square miles and runs 400 miles from north to south and varies from 50 to 80 miles wide at different locations.
    [Show full text]
  • Est. Sex Weight Physical Recap Release Age Lbs E, G, F
    EST. SEX WEIGHT PHYSICAL RECAP RELEASE CONFLICT MORTALITY DATE BEAR # COLOR CAPTURE LOCATION RELEASE LOCATION REMARKS SITUATION TYPE AGE LBS E, G, F, P Y OR N Y OR N TRAPPED AT LAKE TAHOE REALTY, TRAP SET FOR BEAR THAT TORE 10/9/16 B30 4 M 240 DARK BROWN 3 Y Y Y INCLINE UNDER STRUCTURE, DAMAGING WIRING AND INSULATION, UNKNOWN BEAR, RELASED NEAR INCLINE LAKE KILLED BY ADULT SOW, PROBABLY Y89 WHO WAS ACCOMPANIED BY 3 10/3/16 UK 7 MO M 69 BROWN 3 N N N INCLINE MISC CUBS. APPEARS TO BE TWO LITTERS THAT GOT TANGLED UP? 9/30/16 UK 15 M 400 BLACK 3 N N N PINENUTS SH SPORT, MINERAL VALLEY, DOGS, MAY BE OLDER THAN 15. 9/28/16 B77 8 F 200 BROWN 3 Y N N PINENUTS SH SPORT, TOP OF RED CYN-EAGLE MTN SPORT, SHEEP CAMP NEAR SEGAL, EXTREMELY EMACIATED, LOWER 9/18/16 UK 20 M 175 BROWN 1 N N N PINENUTS SH CANINES TO GUM LINE, NO MUSCLE AT ALL, EYES SUNKEN INTO HEAD 1 INCH, HUNTERS FELT IT WAS A MERCY KILLING. 9/16/16 B69 4 F 200 BROWN 3 Y N N PINENUTS SH SPORT, MINERAL VALLEY, DOGS 9/16/16 UK 5 M 300 BLACK 3 N N N PINENUTS SH SPORT, USED DOGS, EAST SIDE OF RAWE PEAK 9/15/16 UK 10 M 300 BROWN 3 N N N LEVIATHAN HBC 395 AT SIMI DIMI, DISPOSED OF, UNSALVAGEABLE TRAPPED, POSSIBLY RESPONSIBLE FOR DAMAGE TO VEHICLE (PEELED 9/7/2016 P59 8 M 550 BROWN 4 Y Y Y CAVE ROCK DOOR DOWN ON TRUCK) BUT HOMEOWNER SAYS THIS WAS NOT A CORRECT BEAR.
    [Show full text]
  • Trail Managment Plan
    Trail Management Plan Tahoe Rim Trail System 2/26/2010 USDA Forest Service Lake Tahoe Basin Management Unit 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 TDD). To file a complaint of discrimination, write to: USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410, or call (800) 795- 3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. Lake Tahoe Basin Management Unit TRAIL MANAGEMENT PLAN – TAHOE RIM TRAIL TABLE OF CONTENTS I. Purpose of the Plan ....................................................................................................... 1 II. Authority ........................................................................................................................ 1 III. Description of the Trail .................................................................................................. 2 IV. Management Situation .................................................................................................
    [Show full text]