Lake Mead National Recreation Area
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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. -
Arizona Fishing Regulations 3 Fishing License Fees Getting Started
2019 & 2020 Fishing Regulations for your boat for your boat See how much you could savegeico.com on boat | 1-800-865-4846insurance. | Local Offi ce geico.com | 1-800-865-4846 | Local Offi ce See how much you could save on boat insurance. Some discounts, coverages, payment plans and features are not available in all states or all GEICO companies. Boat and PWC coverages are underwritten by GEICO Marine Insurance Company. GEICO is a registered service mark of Government Employees Insurance Company, Washington, D.C. 20076; a Berkshire Hathaway Inc. subsidiary. TowBoatU.S. is the preferred towing service provider for GEICO Marine Insurance. The GEICO Gecko Image © 1999-2017. © 2017 GEICO AdPages2019.indd 2 12/4/2018 1:14:48 PM AdPages2019.indd 3 12/4/2018 1:17:19 PM Table of Contents Getting Started License Information and Fees ..........................................3 Douglas A. Ducey Governor Regulation Changes ...........................................................4 ARIZONA GAME AND FISH COMMISSION How to Use This Booklet ...................................................5 JAMES S. ZIELER, CHAIR — St. Johns ERIC S. SPARKS — Tucson General Statewide Fishing Regulations KURT R. DAVIS — Phoenix LELAND S. “BILL” BRAKE — Elgin Bag and Possession Limits ................................................6 JAMES R. AMMONS — Yuma Statewide Fishing Regulations ..........................................7 ARIZONA GAME AND FISH DEPARTMENT Common Violations ...........................................................8 5000 W. Carefree Highway Live Baitfish -
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 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. -
Summits on the Air – ARM for the USA (W7A
Summits on the Air – ARM for the U.S.A (W7A - Arizona) Summits on the Air U.S.A. (W7A - Arizona) Association Reference Manual Document Reference S53.1 Issue number 5.0 Date of issue 31-October 2020 Participation start date 01-Aug 2010 Authorized Date: 31-October 2020 Association Manager Pete Scola, WA7JTM Summits-on-the-Air an original concept by G3WGV and developed with G3CWI Notice “Summits on the Air” SOTA and the SOTA logo are trademarks of the Programme. This document is copyright of the Programme. All other trademarks and copyrights referenced herein are acknowledged. Document S53.1 Page 1 of 15 Summits on the Air – ARM for the U.S.A (W7A - Arizona) TABLE OF CONTENTS CHANGE CONTROL....................................................................................................................................... 3 DISCLAIMER................................................................................................................................................. 4 1 ASSOCIATION REFERENCE DATA ........................................................................................................... 5 1.1 Program Derivation ...................................................................................................................................................................................... 6 1.2 General Information ..................................................................................................................................................................................... 6 1.3 Final Ascent -
Distribution and Trans-Highway Movements of Desert Bighorn Sheep in Northwestern Arizona
US93 Bighorn Sheep Study: Distribution and Trans-Highway Movements of Desert Bighorn Sheep in Northwestern Arizona Final Report 576 Prepared by: Ted McKinney and Thorry Smith Arizona Game and Fish Department Research Branch 2221 West Greenway Road Phoenix, AZ 85023 January 2007 Prepared for: Arizona Department of Transportation 206 South 17th Avenue Phoenix, Arizona 85007 In cooperation with U.S. Department of Transportation Federal Highway Administration The Arizona Department of Transportation and Federal Highway Administration provided funding for this research. The research team thanks AGFD personnel J. Ng for field assistance in monitoring track beds and conducting ground surveys, and K. Bristow and M. Crabb for assistance in collecting radiocollars following drop-off. The research team also thanks J. Barnes, D. Fletcher, and C. Velez (National Park Service) for field assistance. N. Dodd, J. Gagnon, and S. Boe (AGFD) provided analytical assistance. Helicopter pilots M. Brinkworth and N. Lopez (Papillon Helicopters) and S. Sprague (AGFD) assisted with captures. AGFD pilots E. Cash, B. Coffman, B. David, S. Sunde, and D. Hunt assisted with aerial telemetry. D. Conrad and L. Phoenix (AGFD) were net- gunners during captures, and J. Wills and K. Morgan (AGFD) assisted with captures and recovery of bighorn mortalities. G. Erickson (AGFD) and C. Largent (National Park Service) also provided valuable information during the study. C. O’Brien and R. Schweinsburg (AGFD) provided valuable editorial review of this report. 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 Arizona Department of Transportation or the Federal Highway Administration. -
New K-Ar Dates for Late Miocene to Early Pliocene Mafic Volcanic Rocks in the Lake Mead Area, Nevada and Arizona D.L
New K-Ar dates for late Miocene to early Pliocene mafic volcanic rocks in the Lake Mead area, Nevada and Arizona D.L. Feuerbach, E.I. Smith, M. Shafiqullah, and P.E. Damon Isochron/West, Bulletin of Isotopic Geochronology, v. 57, pp. 17-20 Downloaded from: https://geoinfo.nmt.edu/publications/periodicals/isochronwest/home.cfml?Issue=57 Isochron/West was published at irregular intervals from 1971 to 1996. The journal was patterned after the journal Radiocarbon and covered isotopic age-dating (except carbon-14) on rocks and minerals from the Western Hemisphere. Initially, the geographic scope of papers was restricted to the western half of the United States, but was later expanded. The journal was sponsored and staffed by the New Mexico Bureau of Mines (now Geology) & Mineral Resources and the Nevada Bureau of Mines & Geology. All back-issue papers are available for free: https://geoinfo.nmt.edu/publications/periodicals/isochronwest This page is intentionally left blank to maintain order of facing pages. 17 NEW K-Ar DATES FOR LATE MIOCENE TO EARLY PLIOCENE MAFIC VOLCANIC ROCKS IN THE LAKE MEAD AREA, NEVADA AND ARIZONA DANIEL L. FEUERBACH1 Center for Volcanic and Tectonic Studies, EUGENE I. SMITH J Department of Geoscience, University of Nevada, Las Vegas, NV 89154 MUHAMMAD SHAFIQULLAHj Laboratory of isotope Geochemistry, PAUL E. DAMON J Department of Geosciences, University of Arizona, Tucson, AZ 85721 We report the results of 1 3 new K-Ar radiometric ages Mesa and in West End Wash between 10.46 to 8.49 Ma. for basaltic andesites from the Callville Mesa volcanic field These dates are slightly younger than the whole rock K-Ar on the north shore of Lake Mead, Nevada, and basalts from dates of 11.3 ± 0.3 Ma and 11.1 ± 0.5 reported by the Fortification Hill volcanic field, Arizona and Nevada Anderson and others (1972) for basaltic andesite of (fig. -
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. -
Colorado River Slideshow Title TK
The Colorado River: Lifeline of the Southwest { The Headwaters The Colorado River begins in the Rocky Mountains at elevation 10,000 feet, about 60 miles northwest of Denver in Colorado. The Path Snow melts into water, flows into the river and moves downstream. In Utah, the river meets primary tributaries, the Green River and the San Juan River, before flowing into Lake Powell and beyond. Source: Bureau of Reclamation The Path In total, the Colorado River cuts through 1,450 miles of mountains, plains and deserts to Mexico and the Gulf of California. Source: George Eastman House It was almost 1,500 years ago when humans first tapped the river. Since then, the water has been claimed, reclaimed, divided and subdivided many times. The river is the life source for seven states – Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming – as well as the Republic of Mexico. River Water Uses There are many demands for Colorado River water: • Agriculture and Livestock • Municipal and Industrial • Recreation • Fish/Wildlife and Habitat • Hydroelectricity • Tribes • Mexico Source: USGS Agriculture The Colorado River provides irrigation water to about 3.5 million acres of farmland – about 80 percent of its flows. Municipal Phoenix Denver About 15 percent of Colorado River flows provide drinking and household water to more than 30 million people. These cities include: Las Vegas and Phoenix, and cities outside the Basin – Denver, Albuquerque, Salt Lake City, Los Angeles, San Diego and Tijuana, Mexico. Recreation Source: Utah Office of Tourism Source: Emma Williams Recreation includes fishing, boating, waterskiing, camping and whitewater rafting in 22 National Wildlife Refuges, National Parks and National Recreation Areas along river. -
The Colorado River: Lifeline Of
4 The Colorado River: lifeline of the American Southwest Clarence A. Carlson Department of Fishery and Wildlife Biology, Colorado State University, Fort Collins, CO, USA 80523 Robert T. Muth Larval Fish Laboratory, Colorado State University, Fort Collins, CO, USA 80523 1 Carlson, C. A., and R. T. Muth. 1986. The Colorado River: lifeline of the American Southwest. Can. J. Fish. Aguat. Sci. In less than a century, the wild Colorado River has been drastically and irreversibly transformed into a tamed, man-made system of regulated segments dominated by non-native organisms. The pristine Colorado was characterized by widely fluctuating flows and physico-chemical extremes and harbored unique assemblages of indigenous flora and fauna. Closure of Hoover Dam in 1935 marked the end of the free-flowing river. The Colorado River System has since become one of the most altered and intensively controlled in the United States. Many main-stem and tributary dams, water diversions, and channelized river sections now exist in the basin. Despite having one of - the most arid drainages in the world, the present-day Colorado River supplies more water for consumptive use than any river in the United States. Physical modification of streams and introduction of non-native species have adversely impacted the Colorado's native biota. This paper treats the Colorado River holistically as an ecosystem and summarizes current knowledge on its ecology and management. "In a little over two generations, the wild Colorado has been harnessed by a series of dams strung like beads on a thread from the Gulf of California to the mountains of Wyoming. -
Lake Mead National Recreationarea
A QUICK VIEW OF THE AREA LAKE MEAD Lake Mead National Recreation Area consists of two vast blue lakes and the surrounding terrain of brilliantly colorful NATIONAL RECREATIONAREA desert, lofty plateaus, and narrow, deep canyons. It extends for 240 miles from Grand Canyon National Mon- • Open All Year • ument on the east to the Colorado River below Davis Dam on the south. Within this stretch you will find 93 miles of the famed Grand Canyon of the Colorado River. Contents The altitudinal range is great, extending from 517 feet along Page the Colorado River below Davis Dam to 6,140 feet on Price WELCOME 2 Butte on the Shivwits Plateau, north of the Colorado River. A QUICK VIEW OF THE AREA 3 The area contains more than 3,000 square miles and extends into Arizona and Nevada. The Colorado River, over much of SOME THINGS To Do AND SEE 3 its course through the area, serves as the boundary between the RECREATIONAL FACILITIES 8 two States. NEARBY ACCOMMODATIONS AND SERVICES 12 Lake Mead is created by Hoover Dam. At capacity, it is the largest artificial body of water in the world by volume. It has .; REACHING LAKE MEAD AND LAKE MOHAVE 12 a shoreline of 550 miles, a length of 115 miles, a maximum WHEN To VISIT THE AREA. 12 depth of 589 feet, and backs into the lower part of the Grand INDIANS DWELT HERE 13 Canyon of the Colorado for more than 40 miles. Lake Mead passes through Iceberg, Virgin, and Boulder Canyons and into HISTORICAL HAPPENINGS . 15 the upper end of Black Canyon.