Trophy Fish Program. Congratulation Goes out to the 35 Anglers That Entered 274 Fish in 2020
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Tectonic Influences on the Spatial and Temporal Evolution of the Walker Lane: an Incipient Transform Fault Along the Evolving Pacific – North American Plate Boundary
Arizona Geological Society Digest 22 2008 Tectonic influences on the spatial and temporal evolution of the Walker Lane: An incipient transform fault along the evolving Pacific – North American plate boundary James E. Faulds and Christopher D. Henry Nevada Bureau of Mines and Geology, University of Nevada, Reno, Nevada, 89557, USA ABSTRACT Since ~30 Ma, western North America has been evolving from an Andean type mar- gin to a dextral transform boundary. Transform growth has been marked by retreat of magmatic arcs, gravitational collapse of orogenic highlands, and periodic inland steps of the San Andreas fault system. In the western Great Basin, a system of dextral faults, known as the Walker Lane (WL) in the north and eastern California shear zone (ECSZ) in the south, currently accommodates ~20% of the Pacific – North America dextral motion. In contrast to the continuous 1100-km-long San Andreas system, discontinuous dextral faults with relatively short lengths (<10-250 km) characterize the WL-ECSZ. Cumulative dextral displacement across the WL-ECSZ generally decreases northward from ≥60 km in southern and east-central California, to ~25 km in northwest Nevada, to negligible in northeast California. GPS geodetic strain rates average ~10 mm/yr across the WL-ECSZ in the western Great Basin but are much less in the eastern WL near Las Vegas (<2 mm/ yr) and along the northwest terminus in northeast California (~2.5 mm/yr). The spatial and temporal evolution of the WL-ECSZ is closely linked to major plate boundary events along the San Andreas fault system. For example, the early Miocene elimination of microplates along the southern California coast, southward steps in the Rivera triple junction at 19-16 Ma and 13 Ma, and an increase in relative plate motions ~12 Ma collectively induced the first major episode of deformation in the WL-ECSZ, which began ~13 Ma along the N60°W-trending Las Vegas Valley shear zone. -
Lake Mead National Recreation Area Lake Meadsummer 2013 National Recreation Area
National Park Service Park Newspaper U.S. Department of the Interior Lake Mead National Recreation Area Lake MeadSummer 2013 National Recreation Area Borrow a Lifejacket insure the proper size. The loaner lifejackets including education, warnings and citations. The point of the rule isn't to ticket boaters, but to Drowning is the number one cause of fatalities at must be returned before dusk to allow ensure that the most polluting engines are kept Lake Mead National Recreation Area. This loss rangers to inspect and properly store them. off the lake. As time passes, the number of non- of life can be prevented by wearing a lifejacket. Please remember to never leave children compliant PWCs will decline through attrition. unattended. Drowning is preventable if you put on a lifejacket. Wear One for Life! PWCs that meet the standards through the use of direct-injection two-stroke or New Personal Watercraft four-stroke engines are not subject to this prohibition and are still allowed on the lakes. Regulation in Effect Engines that meet the regulations should have an In an effort to safeguard the waters within Lake emission control information label that clearly Mead National Recreation Area, personal water- states that they conform to clean emissions stan- craft (PWC) must now meet 2006 Environmental dards. Boats are not impacted by this regulation. Protection Agency emission standards in order to operate within the park. This includes the waters of A list of frequently asked questions and PWC Lake Mead, Lake Mohave and the Colorado River. models that meet the emissions standards can be This year there are new Lifejacket Loaner found online at: Stations at Boulder Beach and Cottonwood “Lake Mead supplies drinking water for millions www.nps.gov/lake/parkmgmt/twostroke.htm. -
Third, Incline, and Rosewood Creek Section 206 Aquatic Ecosystem Restoration Project
EN V I RON M EN T A L CON SU L T A N T S GEOMORPHIC ASSESSMENT REPORT THIRD, INCLINE, AND ROSEWOOD CREEK SECTION 206 AQUATIC ECOSYSTEM RESTORATION PROJECT Prepared for: U.S. Army Corps of Engineers Sacramento District Sacramento, CA Prepared by: ENTRIX, Inc. Sacramento, CA January 2002 Geomorphic Assessment Report TABLE OF CONTENTS Page Executive Summary............................................................................................... i 1.0 Introduction .............................................................................................1-1 2.0 Objectives ...............................................................................................2-1 3.0 Setting.....................................................................................................3-1 3.1 Watershed Areas and Topography...............................................3-1 3.2 Geology and Soils ........................................................................3-5 3.3 Land-Use Overview......................................................................3-8 3.3.1 Modern Land Use ..............................................................3-8 3.3.2 Historic Land Use ..............................................................3-9 3.3.3 Native American Use .........................................................3-9 3.3.4 Transportation....................................................................3-9 3.3.5 Logging............................................................................3-10 3.3.6 Grazing ............................................................................3-12 -
Las Vegas Wash and Lake Mead
Publications (WR) Water Resources 1996 Synthetic organic compounds: Las Vegas Wash and Lake Mead National Water Quality Assessment Program (NAWQA): Nevada Basin and Range Follow this and additional works at: https://digitalscholarship.unlv.edu/water_pubs Part of the Biogeochemistry Commons, Desert Ecology Commons, Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Fresh Water Studies Commons, Natural Resource Economics Commons, Natural Resources and Conservation Commons, Natural Resources Management and Policy Commons, Sustainability Commons, and the Water Resource Management Commons Repository Citation National Water Quality Assessment Program (NAWQA): Nevada Basin and Range (1996). Synthetic organic compounds: Las Vegas Wash and Lake Mead. Available at: https://digitalscholarship.unlv.edu/water_pubs/79 This Technical Report is protected by copyright and/or related rights. It has been brought to you by Digital Scholarship@UNLV with permission from the rights-holder(s). You are free to use this Technical Report in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s) directly, unless additional rights are indicated by a Creative Commons license in the record and/or on the work itself. This Technical Report has been accepted for inclusion in Publications (WR) by an authorized administrator of Digital Scholarship@UNLV. For more information, please contact [email protected]. INTRODUCTION and industrial compounds), polycyclic aromatic hydrocarbons (PAH's), phthalales, and phenols were detected at one or both The Nevada Basin and Range (NVBR) study unit of the of these sites. Many of these compounds are persistent in the U.S. -
Lake Tahoe Geographic Response Plan
Lake Tahoe Geographic Response Plan El Dorado and Placer Counties, California and Douglas and Washoe Counties, and Carson City, Nevada September 2007 Prepared by: Lake Tahoe Response Plan Area Committee (LTRPAC) Lake Tahoe Geographic Response Plan September 2007 If this is an Emergency… …Involving a release or threatened release of hazardous materials, petroleum products, or other contaminants impacting public health and/or the environment Most important – Protect yourself and others! Then: 1) Turn to the Immediate Action Guide (Yellow Tab) for initial steps taken in a hazardous material, petroleum product, or other contaminant emergency. First On-Scene (Fire, Law, EMS, Public, etc.) will notify local Dispatch (via 911 or radio) A complete list of Dispatch Centers can be found beginning on page R-2 of this plan Dispatch will make the following Mandatory Notifications California State Warning Center (OES) (800) 852-7550 or (916) 845-8911 Nevada Division of Emergency Management (775) 687-0300 or (775) 687-0400 National Response Center (800) 424-8802 Dispatch will also consider notifying the following Affected or Adjacent Agencies: County Environmental Health Local OES - County Emergency Management Truckee River Water Master (775) 742-9289 Local Drinking Water Agencies 2) After the Mandatory Notifications are made, use Notification (Red Tab) to implement the notification procedures described in the Immediate Action Guide. 3) Use the Lake Tahoe Basin Maps (Green Tab) to pinpoint the location and surrounding geography of the incident site. 4) Use the Lake and River Response Strategies (Blue Tab) to develop a mitigation plan. 5) Review the Supporting Documentation (White Tabs) for additional information needed during the response. -
Storm Water Resource Plan | May 2018 Final
AMERICAN RIVER BASIN Storm Water Resource Plan | May 2018 Final Funding for this project has been provided in full or in part through an agreement with the State Water Resources Control Board using funds from Proposition 1. The contents of this document do not necessarily reflect the views and policies of the foregoing, nor does mention of trade names or commercial products constitute endorsement or recommendation for use. American River Basin Storm Water Resource Plan – Final Table of Contents 1.0 INTRODUCTION ............................................................................................................................ 1 1.1 Intent and Content ................................................................................................................. 1 1.2 Goals and Objectives ............................................................................................................. 2 2.0 WATERSHED IDENTIFICATION ............................................................................................... 3 2.1 Watershed Boundaries (IRWMP Section 2.1) ..................................................................... 3 2.2 Internal Boundaries (IRWMP Sections 2.2, 2.8, & 2.9) ...................................................... 5 2.3 Water and Environmental Resources (IRWMP Sections 2.6.2, 2.6.3, & 2.8) ................. 11 2.4 Natural Watershed Processes (IRWMP Sections 2.6.1, 2.6.2, & 2.6.3) ........................... 13 2.5 Watershed Issues and Priorities (IRWMP Sections 2.6.2, 2.7 to 2.9, & Apdx. B) ......... -
Lake Mead National Recreation Area Cycle 5 Report
5RDG,QYHQWRU\DQG&RQGLWLRQ$VVHVVPHQW Lake Mead National Recreation Area LAKE Cycle 5 Report Prepared By: Federal Highway Administration Road Inventory Program (RIP) Data Collected: 05/2012 Report Date: 01/2013 Lake Mead National Recreation Area in Nevada and Arizona ^_ ^_ Salt Lake City ^_ Carson City Cheyenne Denver^_ ! Colorado Springs Las Vegas ! !Long Beach ! ! Anaheim ! Lake MeadAlbuquerque^_ Santa Ana National Recreation! Area !San Diego Phoenix ^_! Mesa Tucson ! El Paso ! DCV = Data Collection Vehicle TABLE OF CONTENTS SECTION PAGE 1. INTRODUCTION 1 - 1 2. PARK ROUTE INVENTORY 5RXWH,'V6XEFRPSRQHQWV &KDQJHV5HSRUW $V$SSOLFDEOH 2 – 1 3. PARK SUMMARY INFORMATION 3DYHG5RXWH0LOHVDQG3HUFHQWDJHVE\)XQFWLRQDO&ODVVDQG3&5 3 – 1 '&95RDG&RQGLWLRQ6XPPDU\ 3 – 3 4. PARK ROUTE LOCATION MAPS 5RXWH/RFDWLRQ.H\0DS 4 – 1 5RXWH/RFDWLRQ$UHD0DS 4 – 2 5RXWH&RQGLWLRQ.H\0DS±3&50LOHE\0LOH 4 – 12 5RXWH&RQGLWLRQ$UHD0DS±3&50LOHE\0LOH 4 – 13 5. PAVED ROUTE CONDITION RATING SHEETS &563DJHV 5 – 1 6. MANUALLY RATED PAVED ROUTE CONDITION RATING SHEETS 0553DJHV 6 – 1 7. PARKING AREA CONDITION RATING SHEETS 3DYHG3DUNLQJ$UHD3DJHV 7 – 1 8. ROUTE MAINTENANCE FEATURES SUMMARIES '&95RXWH0DLQWHQDQFH)HDWXUHV6XPPDU\ 8 – 1 6WUXFWXUH/LVW 8 – 3 9. ROUTE MAINTENANCE FEATURES ROAD LOGS 5RXWH0DLQWHQDQFH)HDWXUHV5RDG/RJV 9 – 1 10. APPENDIX ([SODQDWLRQRI&KDQJHVWRWKH5,3,QGH[(TXDWLRQVDQG'HWHUPLQDWLRQRI3&5 10 – 1 ([SODQDWLRQRIWKH([FHOOHQW*RRG)DLUDQG3RRU&RQGLWLRQ'HVFULSWLRQV 10 – 2 'HVFULSWLRQRI5DWLQJ6\VWHP 10 – 3 6XUIDFH'LVWUHVVHV 10 – 5 ,QGH[)RUPXODV 10 – 12 'DWD&ROOHFWLRQ9HKLFOH6XEV\VWHPV 10 – 16 *HRGDWDEDVH±%DFNJURXQGDQG0HWDGDWD 10 – 19 *ORVVDU\RI7HUPVDQG$EEUHYLDWLRQV 10 – 20 Section 1 Introduction Lake Mead National Recreation Area INTRODUCTION The Federal Highway Administration, (FHWA), in the mid 1970s, was charged with the task of identifying surface condition deficiencies and corrective priorities on National Park Service (NPS) roads and parkways. -
Utah Geological Association Publication 30.Pub
Utah Geological Association Publication 30 - Pacific Section American Association of Petroleum Geologists Publication GB78 239 CENOZOIC EVOLUTION OF THE NORTHERN COLORADO RIVER EXTEN- SIONAL CORRIDOR, SOUTHERN NEVADA AND NORTHWEST ARIZONA JAMES E. FAULDS1, DANIEL L. FEUERBACH2*, CALVIN F. MILLER3, 4 AND EUGENE I. SMITH 1Nevada Bureau of Mines and Geology, University of Nevada, Mail Stop 178, Reno, NV 89557 2Department of Geology, University of Iowa, Iowa City, IA 52242 *Now at Exxon Mobil Development Company, 16825 Northchase Drive, Houston, TX 77060 3Department of Geology, Vanderbilt University, Nashville, TN 37235 4Department of Geoscience, University of Nevada, Las Vegas, NV 89154 ABSTRACT The northern Colorado River extensional corridor is a 70- to 100-km-wide region of moderately to highly extended crust along the eastern margin of the Basin and Range province in southern Nevada and northwestern Arizona. It has occupied a criti- cal structural position in the western Cordillera since Mesozoic time. In the Cretaceous through early Tertiary, it stood just east and north of major fold and thrust belts and also marked the northern end of a broad, gently (~15o) north-plunging uplift (Kingman arch) that extended southeastward through much of central Arizona. Mesozoic and Paleozoic strata were stripped from the arch by northeast-flowing streams. Peraluminous 65 to 73 Ma granites were emplaced at depths of at least 10 km and exposed in the core of the arch by earliest Miocene time. Calc-alkaline magmatism swept northward through the northern Colorado River extensional corridor during early to middle Miocene time, beginning at ~22 Ma in the south and ~12 Ma in the north. -
Conserving the Grand Canyon Watershed a Proposal for National Monument Designation
Conserving the Grand Canyon Watershed A Proposal for National Monument Designation r! Photo: Marti&v& w, Kaibab Plateau, north rim of tlx Grand Canyon, Arizona 02010 GCWC WIL L1N COUNCIL W1DERNESS cnCtotr- Conserving the Grand Canyon Watershed A Proposal for National Monument Designation EXECUTIVE SUMMARY A 12,000-year Human Record A Unique Landscape The proposed Monument holds lands of great signifi- Ranging from the arid Sonoran and Great Basin Des- cance to the Kaibab Paiute tribe, as well as Hopi, Zuni, erts to lush, boreal Rocky Mountain forests, the proposed Hualapi, Havasupai, and Navajo tribes, and was home Grand Canyon Watershed National Monument is an eco- to the Clovis, Basketmaker, and Puebloan peoples. More logical wonder. The proposed Monument embraces one than three thousand ancient Native American archaeo- of the most spectacular American landscapes— the Grand logical sites have been documented in the region, repre- Canyon— and encompasses a wild, rugged array of tower- senting just a fraction of the human history of the area. ing cliffs, deeply incised tributary canyons, grasslands, Ranging from settlements or habitations, to temporary and numerous springs that flow into the Colorado River camps, granaries and caches, and rock art, some of the in Grand Canyon. Unique geologic formations contribute sites date from as far back as the Paleo- Indian period— substantially to the proposed Monument' s spectacular 11, 000 BCE. biological diversity, with escarpments and canyons dating Kanab Creek falls within the traditional territory of back millions ofyears. At least twenty-two sensitive species call " Certain [ lanad] of theforest redereee dhoula the landscape home, including the endangered California condor and also be made predereed for the wigforest the rare northern goshawk. -
Management Indicator Species of the Kaibab National Forest: an Evaluation of Population and Habitat Trends Version 3.0 2010
Management Indicator Species of the Kaibab National Forest: an evaluation of population and habitat trends Version 3.0 2010 Isolated aspen stand. Photo by Heather McRae. Pygmy nuthatch. Photo by the Smithsonian Inst. Pumpkin Fire, Kaibab National Forest Mule deer. Photo by Bill Noble Red-naped sapsucker. Photo by the Smithsonian Inst. Northern Goshawk © Tom Munson Tree encroachment, Kaibab National Forest Prepared by: Valerie Stein Foster¹, Bill Noble², Kristin Bratland¹, and Roger Joos³ ¹Wildlife Biologist, Kaibab National Forest Supervisor’s Office ²Forest Biologist, Kaibab National Forest, Supervisor’s Office ³Wildlife Biologist, Kaibab National Forest, Williams Ranger District Table of Contents 1. MANAGEMENT INDICATOR SPECIES ................................................................ 4 INTRODUCTION .......................................................................................................... 4 Regulatory Background ...................................................................................................... 8 Management Indicator Species Population Estimates ...................................................... 10 SPECIES ACCOUNTS ................................................................................................ 18 Aquatic Macroinvertebrates ...................................................................................... 18 Cinnamon Teal .......................................................................................................... 21 Northern Goshawk ................................................................................................... -
Streamflow, Sediment Transport, and Nutrient Transport at Incline Village, Lake Tahoe, Nevada, 1970-73
Streamflow, Sediment Transport, and Nutrient Transport at Incline Village, Lake Tahoe, Nevada, 1970-73 United States Geological Survey G/nnv Water-Supply Paper 2313 , Incline \ ..J"" Prepared in cooperation with the Nevada Division t INI )EVtLOPI D ^Rl A of Water Resources and Washoe County \ '' -^ \^ **\* I 1 / DFVHOPEU j ^/ ;AR£.V /f:V; 1 c LAKE TAHOE Coyer: Incline Village study area, Lake Tahoe, Nevada. Approximate drainage basin boundaries indicated by dashed, dotted lines. Solid triangles are principaj data collection sites; solid squares are supplemen tary data collection sites. Streamflow, Sediment Transport, and Nutrient Transport at Incline Village, Lake Tahoe, Nevada, 1970-73 By PATRICK A. GLANCY Prepared in cooperation with the Nevada Division of Water Resources and Washoe County U.S. GEOLOGICAL SURVEY WATER-SUPPLY PAPER 2313 DEPARTMENT OF THE INTERIOR DONALD PAUL MODEL, Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director UNITED STATES GOVERNMENT PRINTING OFFICE: 1988 For sale by the Books and Open-File Reports Section, U.S. Geological Survey, Federal Center, Box 25425, Denver, CO 80225 Library of Congress Cataloging in Publication Data Glancy, Patrick A. Streamflow, sediment transport, and nutrient transport at Incline Village, Lake Tahoe, Nevada, 1970-73. U.S. Geological Survey ; Water-supply paper 2313 Bibliography: p. Supt. of Docs, no.: I 19.13:2313 1. Stream measurements Nevada Incline Village Region. 2. Sediment transport Nevada Incline Village Region. 3. Detritus Nevada Incline Village Region. I. Nevada. Division -
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.