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Plate 1 117° 116° U.S. Department of the Interior Prepared in cooperation with the Scientific Investigations Report 2015–5175 U.S. Geological Survey U.S. Department of Energy Plate 1 117° 116° Monitor Range White River Valley Hot Creek Valley 5,577 (1,700) Warm Springs Railroad Valley 6 5,000 4,593 (1,400) Stone Cabin Valley Quinn Canyon Range Tonopah 5,577 (1,700) Ralston Valley NYE COUNTY 4,921 (1,500) LINCOLN COUNTY Big Smoky Valley 5,249 (1,600) 38° 38° 5,906 (1,800) 5,249 (1,600) Ralston Valley Coal Valley 5,249 (1,600) Kawich Range 4,265 (1,300) 4,921 (1,500) 5,249 (1,600) 6,234 (1,900) 5,577 (1,700) 4,921 (1,500) Railroad Valley South CACTUS FLAT 5,200 | 200 Cactus Range Penoyer Valley Goldfield 5,249 (1,600) 3,800 | 3,800 4,921 (1,500) Clayton Valley 3,609 (1,100) Rachel Sand Spring Valley 5,249 (1,600) 5,577 (1,700) Sarcobatus Flat North Kawich Valley 4,593 (1,400) 5,600 | 5,600 93 Pahranagat Valley 4,921 4,593 (1,400) 4,593 (1,400)5,249 3,937 (1,200)4,265 (1,300) Gold Flat Pahranagat Range 4,921 (1,500) Pahute Mesa–Oasis Valley 6,300 | 5,900 Belted Range Alamo 4,265 (1,300) 4,593 (1,400) 3,609 (1,100) Scottys Emigrant Valley Junction Black Pahute Mesa Nevada National Mountain Security Site 3,281 (1,000) NYE COUNTY Sarcobatus Flat ESMERALDA COUNTY ESMERALDA Rainier Mesa 3,937 (1,200) Yucca Flat Timber Death Valley North Mountain 4,000 | 4,000 Yucca Flat Sarcobatus Flat South Oasis Valley subbasin Grapevine 37° 37° Springs area 1,900 | 1,900 4,265 Grapevine Mountains Bullfrog Hills 2,297 (700) 100 | 100 3,937 (1,200) Ash Meadows 20,50020,500 | 18,500 Beatty Yucca Mountain 300 LINCOLN COUNTY CLARK COUNTY 100 + NYE COUNTY 1,640 (500) 3,609 (1,100) Amargosa River Alkali Flat– Mesquite Flat Furnace Creek Ranch 5,500 | 7,900 Jackass Flats Death Valley 2,625 (800) 3,281 (1,000) Amargosa Desert Mercury Amargosa Valley 2,320 (707) 984 (300) Sheep Range 328 (100) 7,874 (2,400) 2,000 Indian Springs 1,969 (600) (600) 1,969 1,969 CALIFORNIANEVADA Death Valley West 656 (200) 13,600 | 13,600 1,312 (400) 373 Ash Furnace Meadows Creek Ranch 2,953 (900) Franklin Well area Las Vegas Valley 4,921 (1,500) 190 190 Spring Mountains Death Valley 6,562 (2,000) Death Valley Junction Franklin Lake playa Pahrump 3,609 (1,100) Las Vegas 0 Stewart Valley Amargosa River Pahrump Valley 2,625 (800) Panamint Range 3,281 (1,000) 2,953 (900) 36° 36° Chicago Valley Shoshone Pahrump to Death Valley South 25,200 | 25,200 CLARK COUNTY 127 Tecopa INYO INYO COUNTY COUNTY Mesquite Valley SAN BERNARDINO COUNTY COUNTY 15 COUNTY KERN Primm SAN BERNARDINO Base from U.S. Geological Survey digital data 1:100,000; Hillshade from USGS 117° 116° Geospatial metadata: 1-arc-second NED; Universal Transverse Mercator Projection, Zone 11, NAD83. EXPLANATION http://water.usgs.gov/GIS/metadata/usgswrd/XML/sir2015_5175_GWbasins.xml http://water.usgs.gov/GIS/metadata/usgswrd/XML/sir2015_5175_WLcontours.xml Generalized area of in-place recharge—Dark blue is area of likely recharge; light blue is area of minor Boundary of Nevada National Security Site (NNSS)—Internal boundaries Groundwater basin boundary—First number under basin name is estimated recharge General direction of regional groundwater flow recharge. Minor and likely recharge areas are derived from precipitation bands of 10–13 and >13 inches per are NNSS operational areas Ash Meadows generated within basin from infiltration of precipitation; second number is estimated year, respectively. Precipitation distribution is from Parameter-elevation Regressions on Independent Slopes predevelopment discharge from springs and evapotranspiration (see table 1). Values General direction and approximate rate of interbasin groundwater flow—Number on arrow Model (PRISM) output used to estimate 1981–2010 mean precipitation (Daly and others, 2008). Recharge areas, Relative likelihood of hydraulic connection across hydrographic 20,500 | 18,500 in acre-feet per year 100 + 300 indicates rate of interbasin flow, in acre-feet per year (regular and italic numbers are as defined by precipitation bands, are generalized and are for illustration purposes only. boundary, based on geology—from Heilweil and Brooks (2011) groundwater and streamflow components, respectively) Groundwater subbasin boundary High Generalized area of predevelopment groundwater Water-level contour—Shows altitude of predevelopment regional water-level surface, in feet Spring discharge—Modified from Harrill and others (1988) 1,312 (400) Low (number in parentheses is in original units of meters). Contour interval is 328 feet except on Spring Mountains and Sheep Range and one supplemental contour at Amargosa Valley. Datum is Uncertain Hydraulic head measurement location—Used in construction of water-level contours. National Geodetic Vertical Datum of 1929. Modified from U.S. Department of Energy (1997a) using Modified from U.S. Department of Energy (1997a) data and interpretations from Elliott and Fenelon (2010) and Fenelon and others (2010) Distribution of evapotranspiration units in areas of groundwater discharge—Colors denote evapotranspiration units as defined and mapped by Laczniak and others (2001), 10 5 0 10 20 30 40 MILES Reiner and others (2002), and DeMeo and others (2003) 10 5 0 10 20 30 40 KILOMETERS Recharge, Discharge, and Groundwater Flow in Pahute Mesa–Oasis Valley and Surrounding Groundwater Basins, Nevada and California By Joseph M. Fenelon, Keith J. Halford, and Michael T. Moreo 2016.
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