INTRODUCTION Pluvial Lake Lahontan Consisted of Seven Sub Basins That Only Coalesced Into One Lake at the Very Highest Levels
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Our Arctic Nation a U.S
Connecting the United States to the Arctic OUR ARCTIC NATION A U.S. Arctic Council Chairmanship Initiative Cover Photo: Cover Photo: Hosting Arctic Council meetings during the U.S. Chairmanship gave the United States an opportunity to share the beauty of America’s Arctic state, Alaska—including this glacier ice cave near Juneau—with thousands of international visitors. Photo: David Lienemann, www. davidlienemann.com OUR ARCTIC NATION Connecting the United States to the Arctic A U.S. Arctic Council Chairmanship Initiative TABLE OF CONTENTS 01 Alabama . .2 14 Illinois . 32 02 Alaska . .4 15 Indiana . 34 03 Arizona. 10 16 Iowa . 36 04 Arkansas . 12 17 Kansas . 38 05 California. 14 18 Kentucky . 40 06 Colorado . 16 19 Louisiana. 42 07 Connecticut. 18 20 Maine . 44 08 Delaware . 20 21 Maryland. 46 09 District of Columbia . 22 22 Massachusetts . 48 10 Florida . 24 23 Michigan . 50 11 Georgia. 26 24 Minnesota . 52 12 Hawai‘i. 28 25 Mississippi . 54 Glacier Bay National Park, Alaska. Photo: iStock.com 13 Idaho . 30 26 Missouri . 56 27 Montana . 58 40 Rhode Island . 84 28 Nebraska . 60 41 South Carolina . 86 29 Nevada. 62 42 South Dakota . 88 30 New Hampshire . 64 43 Tennessee . 90 31 New Jersey . 66 44 Texas. 92 32 New Mexico . 68 45 Utah . 94 33 New York . 70 46 Vermont . 96 34 North Carolina . 72 47 Virginia . 98 35 North Dakota . 74 48 Washington. .100 36 Ohio . 76 49 West Virginia . .102 37 Oklahoma . 78 50 Wisconsin . .104 38 Oregon. 80 51 Wyoming. .106 39 Pennsylvania . 82 WHAT DOES IT MEAN TO BE AN ARCTIC NATION? oday, the Arctic region commands the world’s attention as never before. -
61 Pleistocene Lake Mojave Stratigraphy And
HISTORY, PROCBSS, AND TRADITION: it SYMPOSIUM FOR MAKOTO KOnA 61 PLEISTOCENE LAKE MOJAVE STRATIGRAPHY AND ASSOCIATED CULTURAL MATERIAL CLAUDE N. WARREN AND JOAN S. SCHNEIDER The problems of geoarchaeology addressed in this paper were probably most clearly stated very early in the research, almost 40 years ago (Warren and DeCosta 1964). To adequately date the artifact assemblages from the 24 "surface sites" on the high beach lines of Pluvial Lake Mojave, two tasks must be successfully completed: (1) construct the geomorphic history of Lake Mojave from the strafigraphy, topographic re/afionships, radiocarbon dates, and any other useful data, and (2) demonstrate the stratigraphic relationship between prehistoric artifacts and lacustrine deposits of Lake Mojave. These two tasks are addressed in this paper, demonstrating the sequence of beach-ridge INTRODUCTION formation at Lake Mojave (Antevs 1937; Ore and Warren 1971; Wells et al. 1989). Additional data The Mojave River periodically flowed into from other locations within the range of elevations Death Valley during the late Pleistocene and early of the high beach ridges are integrated with Holocene. On its way to Death Valley, it filled observations made at the EI Capitan Beach the basins of today's Silver and Soda playas to Complex. overflow levels, forming Pleistocene (and early Holocene) Lake Mojave (Map 1). The final Within the uppermost portion of the Lake overflow stage of Pleistocene Lake Mojave was Mojave Basin are three high beach ridges referred probably about 9,000 years ago. With the to as BRI, BRII, and BRIll. These are the most increasing aridity of the early Holocene, the flow extensive shoreline features formed by the early of the Mojave River decreased, and by 7,500 years high stands of Lake Mojave. -
Ecoregions of Nevada Ecoregion 5 Is a Mountainous, Deeply Dissected, and Westerly Tilting Fault Block
5 . S i e r r a N e v a d a Ecoregions of Nevada Ecoregion 5 is a mountainous, deeply dissected, and westerly tilting fault block. It is largely composed of granitic rocks that are lithologically distinct from the sedimentary rocks of the Klamath Mountains (78) and the volcanic rocks of the Cascades (4). A Ecoregions denote areas of general similarity in ecosystems and in the type, quality, Vegas, Reno, and Carson City areas. Most of the state is internally drained and lies Literature Cited: high fault scarp divides the Sierra Nevada (5) from the Northern Basin and Range (80) and Central Basin and Range (13) to the 2 2 . A r i z o n a / N e w M e x i c o P l a t e a u east. Near this eastern fault scarp, the Sierra Nevada (5) reaches its highest elevations. Here, moraines, cirques, and small lakes and quantity of environmental resources. They are designed to serve as a spatial within the Great Basin; rivers in the southeast are part of the Colorado River system Bailey, R.G., Avers, P.E., King, T., and McNab, W.H., eds., 1994, Ecoregions and subregions of the Ecoregion 22 is a high dissected plateau underlain by horizontal beds of limestone, sandstone, and shale, cut by canyons, and United States (map): Washington, D.C., USFS, scale 1:7,500,000. are especially common and are products of Pleistocene alpine glaciation. Large areas are above timberline, including Mt. Whitney framework for the research, assessment, management, and monitoring of ecosystems and those in the northeast drain to the Snake River. -
Eclamx
ECLAMX ION Managing Water in the West ~\~ Nalional Environmental Policy Actt 9\' ~l! FINDING OF NO SIGNIFICANT IMPACT a\' <!J\ No. 10-SCAO-002-FONSI Upper Mojave River Groundwater Regional Recharge and Recovery Project and Oro Grande Groundwater Recharge Project San Bernardino County, California The Bureau of Reclamation (Reclamation) is providing American Recovery and Reinvestment Act (ARRA) funds to the Mojave Water Agency (MWA) to implement two components of their Integrated Regional Water Management Plan in San Bernardino County, California. The projects will install groundwater wells, pipelines, reservoir storage tanks, a pump station, and a chlorination facility for aquifer storage and recovery using California State Water Project supplies and the Mojave River groundwater basin. Financial assistance agreements have been prepared for the Oro Grande Groundwater Recharge Project (Oro Grande Project) and for the first phase of the Upper Mojave River Groundwater Regional Recharge and Recovery Project (R3 Project). Additional phases of the R3 Project may be funded in the future. Based on our review of the attached Environmental Assessment (EA) and other supporting documents including an Environmental Impact Report (EIR), State Clearinghouse No. 2005041103, prepared under the California Environmental Quality Act (CEQA), we have determined that the proposed action does not constitute a major Federal action which would significantly affect the quality of the human environment within the meaning of Section 102(2) (C) of the National Environmental Policy Act of 1969 (NEPA). Accordingly, preparation of an environmental impact statement on the proposed action is not required. l~t~jQ~j~·- Recommended: uc4: ' Date: Doug McPherson, Environmental Protection Specialist I 91?(~ Date: 11-~" 0 Reviewed By: 2 '7 Dennis Wolfe, :AJOea Engineer Approved: _~~~~\-¥-!~~ Date: I~'" 9- 07 U.S. -
A Watershed Management Approach to Assessment of Water Quality And
A Watershed Management Approach to Assessment Of Water Quality and Development of Revised Water Quality Standards for the Ground Waters of the Mojave River Floodplain Christopher R. Maxwell Christopher R. Maxwell is an Associate Geologist with SECOR International Incorporated. Mr. Maxwell has a B.S. degree in Geology from California State Polytechnic University at Pomona. He previously worked for the California Regional Water Quality Control Board (RWQCB) for ten years, where his duties included management of watershed activities for the Mojave Watershed. His professional experience includes regulatory involvement in activities related to landfills, mines, dairies, underground storage tanks, sewage treatment plants, military installations and ground water recharge projects. Mr. Maxwell has other publications with topics including natural attenuation, bioremediation and site investigation and remediation. Abstract The Mojave River watershed is located in the arid high-desert region of Southern California in San Bernardino County. In the 1970s and 1980s the Lahontan Regional Water Quality Control Board (RWQCB) established numerical water quality objectives (WQOs) for several locations in the watershed. Because the Mojave River flows underground for much of its 120 miles, some of the numerical WQOs apply to both surface waters and ground waters. In 1996 the RWQCB assembled a watershed management team of local stakeholders for the Mojave Watershed. A primary goal identified by the stakeholders was to assess the current state of water quality for the Mojave River system. A possible long-term goal is the development of total maximum daily loads as required by the Clean Water Act (CWA). The Mojave River is listed as a water quality limited segment in accordance with Section 303(d) of the CWA. -
Yucca Mountain Project Area Exists for Quality Data Development in the Vadose Zone Below About 400 Feet
< I Mifflin & Associates 2700 East Sunset Road, SufteInc. C2 Las Vegas, Nevada 89120 PRELIMINARY 7021798-0402 & 3026 FAX: 702/798-6074 ~ADd/tDaeii -00/( YUCCA MOUNTAIN PRO1. A Summary of Technical Support Activities January 1987 to June 1988 By: Mifflin & Associates, Inc. LaS Vegas, Nevada K) Submitted to: .State of Nevada Agency for Nuclear Projects Nuclear Waste Project Office Carson City, Nevada H E C El V E ii MAY 15 1989 NUCLEAR WASTE PROJECt OFFICE May 1989 Volume I 3-4:0 89110o3028905a, WASTE PLDR wM-11PDC 1/1 1 1 TABLE OF CONTENTS I. INTRO DUCTION ............................................................................................................................ page3 AREAS OF EFFORT A. Vadose Zone Drilling Program ............................................................................................. 4 Introduction .............................................................................................................................. 5 Issues ....................................................................................................................................... 7 Appendix A ............................................................................................................................... 9 B. Clim ate Change Program ....................................................................................................... 15 Introduction .............................................................................................................................. 16 Issues ...................................................................................................................................... -
Location Hydraulic Study Report
Mojave River Bridge at Yucca Loma Road Town of Apple Valley and City of Victorville San Bernardino County, California Location Hydraulic Study Report Prepared for: Prepared by: and February 2009 Location Hydraulic Study Report Mojave River Bridge at Yucca Loma Road Town of Apple Valley and City of Victorville, San Bernardino County, California Table of Contents Executive Summary........................................................................................................... iv Acronyms........................................................................................................................... vi 1 General Description............................................................................................ 1 1.1 Project Description...............................................................................................1 1.1.1 No-Build Alternative......................................................................................... 1 1.1.2 Build Alternative ............................................................................................... 1 1.2 Need for Project ...................................................................................................5 1.3 Project History.....................................................................................................5 1.4 Creek, Stream, and River Crossings ....................................................................5 1.4.1 Geographic Location ........................................................................................ -
Spatially-Explicit Modeling of Modern and Pleistocene Runoff and Lake Extent in the Great Basin Region, Western United States
Spatially-explicit modeling of modern and Pleistocene runoff and lake extent in the Great Basin region, western United States Yo Matsubara1 Alan D. Howard1 1Department of Environmental Sciences University of Virginia P.O. Box 400123 Charlottesville, VA 22904-4123 Abstract A spatially-explicit hydrological model balancing yearly precipitation and evaporation is applied to the Great Basin Region of the southwestern United States to predict runoff magnitude and lake distribution during present and Pleistocene climatic conditions. The model iteratively routes runoff through, and evaporation from, depressions to find a steady state solution. The model is calibrated with spatially-explicit annual precipitation estimates and compiled data on pan evaporation, mean annual temperature, and total yearly runoff from stations. The predicted lake distribution provides a close match to present-day lakes. For the last glacial maximum the sizes of lakes Bonneville and Lahontan were well predicted by linear combinations of decrease in mean annual temperature from 0 to 6 °C and increases in precipitation from 0.8 to 1.9 times modern values. Estimated runoff depths were about 1.2 to 4.0 times the present values and yearly evaporation about 0.3 to 1 times modern values. 2 1. Introduction The Great Basin of the southwestern United States in the Basin and Range physiographic province contains enclosed basins featuring perennial and ephemeral lakes, playas and salt pans (Fig. 1). The Great Basin consists of the entire state of Nevada, western Utah, and portions of California, Idaho, Oregon, and Wyoming. At present it supports an extremely dry, desert environment; however, about 40 lakes (some reaching the size of present day Great Lakes) episodically occupied the Great Basin, most recently during the last glacial maximum (LGM) [Snyder and Langbein, 1962; Hostetler et al., 1994; Madsen et al., 2001]. -
The Desert Serrano of the Mojave River
The Desert Serrano of the Mojave River Mark Q. Sutton and David D. Earle Abstract century, although he noted the possible survival of The Desert Serrano of the Mojave River, little documented by “perhaps a few individuals merged among other twentieth century ethnographers, are investigated here to help un- groups” (Kroeber 1925:614). In fact, while occupation derstand their relationship with the larger and better known Moun- tain Serrano sociopolitical entity and to illuminate their unique of the Mojave River region by territorially based clan adaptation to the Mojave River and surrounding areas. In this effort communities of the Desert Serrano had ceased before new interpretations of recent and older data sets are employed. 1850, there were survivors of this group who had Kroeber proposed linguistic and cultural relationships between the been born in the desert still living at the close of the inhabitants of the Mojave River, whom he called the Vanyumé, and the Mountain Serrano living along the southern edge of the Mojave nineteenth century, as was later reported by Kroeber Desert, but the nature of those relationships was unclear. New (1959:299; also see Earle 2005:24–26). evidence on the political geography and social organization of this riverine group clarifies that they and the Mountain Serrano belonged to the same ethnic group, although the adaptation of the Desert For these reasons we attempt an “ethnography” of the Serrano was focused on riverine and desert resources. Unlike the Desert Serrano living along the Mojave River so that Mountain Serrano, the Desert Serrano participated in the exchange their place in the cultural milieu of southern Califor- system between California and the Southwest that passed through the territory of the Mojave on the Colorado River and cooperated nia can be better understood and appreciated. -
Open-File/Color For
Questions about Lake Manly’s age, extent, and source Michael N. Machette, Ralph E. Klinger, and Jeffrey R. Knott ABSTRACT extent to form more than a shallow n this paper, we grapple with the timing of Lake Manly, an inconstant lake. A search for traces of any ancient lake that inundated Death Valley in the Pleistocene upper lines [shorelines] around the slopes Iepoch. The pluvial lake(s) of Death Valley are known col- leading into Death Valley has failed to lectively as Lake Manly (Hooke, 1999), just as the term Lake reveal evidence that any considerable lake Bonneville is used for the recurring deep-water Pleistocene lake has ever existed there.” (Gale, 1914, p. in northern Utah. As with other closed basins in the western 401, as cited in Hunt and Mabey, 1966, U.S., Death Valley may have been occupied by a shallow to p. A69.) deep lake during marine oxygen-isotope stages II (Tioga glacia- So, almost 20 years after Russell’s inference of tion), IV (Tenaya glaciation), and/or VI (Tahoe glaciation), as a lake in Death Valley, the pot was just start- well as other times earlier in the Quaternary. Geomorphic ing to simmer. C arguments and uranium-series disequilibrium dating of lacus- trine tufas suggest that most prominent high-level features of RECOGNITION AND NAMING OF Lake Manly, such as shorelines, strandlines, spits, bars, and tufa LAKE MANLY H deposits, are related to marine oxygen-isotope stage VI (OIS6, In 1924, Levi Noble—who would go on to 128-180 ka), whereas other geomorphic arguments and limited have a long and distinguished career in Death radiocarbon and luminescence age determinations suggest a Valley—discovered the first evidence for a younger lake phase (OIS 2 or 4). -
Burning Man Geology Black Rock Desert.Pdf
GEOLOGY OF THE BLACK ROCK DESERT By Cathy Busby Professor of Geology University of California Santa Barbara http://www.geol.ucsb.edu/faculty/busby BURNING MAN EARTH GUARDIANS PAVILION 2012 LEAVE NO TRACE Please come find me and Iʼll give you a personal tour of the posters! You are here! In one of the most amazing geologic wonderlands in the world! Fantastic rock exposure, spectacular geomorphic features, and a long history, including: 1. PreCambrian loss of our Australian neighbors by continental rifting, * 2. Paleozoic accretion of island volcanic chains like Japan (twice!), 3. Mesozoic compression and emplacement of a batholith, 4. Cenozoic stretching and volcanism, plus a mantle plume torching the base of the continent! Let’s start with what you can see on the playa and from the playa: the Neogene to Recent geology, which is the past ~23 million years (= Ma). Note: Recent = past 15,000 years http://www.terragalleria.com Then we’ll “build” the terrane you are standing on, beginning with a BILLION years ago, moving through the Paleozoic (old life, ~540-253 Ma), Mesozoic (age of dinosaurs, ~253-65 Ma)) and Cenozoic (age of mammals, ~65 -0 Ma). Neogene to Recent geology Black Rock Playa extends 100 miles, from Gerlach to the Jackson Mountains. The Black Rock Desert is divided into two arms by the Black Rock Range, and covers 1,000 square miles. Empire (south of Gerlach)has the U.S. Gypsum mine and drywall factory (brand name “Sheetrock”), and thereʼs an opal mine at base of Calico Mtns. Neogene to Recent geology BRP = The largest playa in North America “Playa” = a flat-bottomed depression, usually a dry lake bed 3,500ʼ asl in SW, 4,000ʼ asl in N Land speed record: 1997 - supersonic car, 766 MPH Runoff mainly from the Quinn River, which heads in Oregon ~150 miles north. -
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