39 x 52 cm. Relief shown by hachures and spot heights "Issued June 30, 1881." "Expeditions of 1873, 1878 and 1879 under the command of 1st. Lieut. Geo. M. Wheeler, Corps of Engineers U.S. Army." Geological map Probably originally published as part of the geological atlas which is an appendix to the Surveys' Report upon United States geographical surveys west of the one hundredth meridian. "Prof. John J. Stevenson, geological assistant." "By order of the honorable the Secretary of War under the direction of Brig. General A. A. Hunphreys, Chief of Engineers, U. S. Army." Original publisher: U.S. Geographical Surveys West of the 100th Meridian, Scale: 1 inch to 4 miles or 1: 253440.

At top of map: 'United States, Department of Interior, Geological Survey. Professional Paper 374-E, plate 1.' In lower right corner of map: 'Geology mapped by C.R. Longwell.' Relief shown by contours. Includes seven colored cross-sections. Scale 1:125,000 (W 114°50´--W 114°20´/N 36°10´--N 35°10´). Series: Shorter contributions to general geology. Professional paper (Geological Survey (U.S.))
374-E. Originally published as plate 1 in: Reconnaissance geology between Lake Mead and Davis Dam, Arizona-Nevada / by Chester R. Longwell, published by the U.S. Government Printing Office in 1963 in the series Shorter contributions to general geology and as Geological Survey professional paper 374-E.

37 x 50 cm. Prime meridian: Washington, D.C. Relief shown by hachures and spot heights. "Issued May 7th, 1877. 2nd ed., June 30th, 1881." "Atlas sheet no. 77(B)." "Expeditions of 1871 & 1786 under the command of 1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army." "Weyss, Herman & Lang, del." Probably originally published as part of the geological atlas which is an appendix to the Surveys' Report upon United States geographical surveys west of the one hundredth meridian. Geological map. "Prof. John J. Stevenson, geological assistant." Original publisher: U.S. Geographical Surveys West of the 100th Meridian, Scale: 1 inch to 4 miles or 1: 253440.

'United States Department of the Interior, Geological Survey. Professional paper 712-C, plate 3.' 'Prepared on behalf of the Atomic Energy Commission.' 'Base from U.S. Geological Survey Caliente, Death Valley, Goldfield, and Las Vegas, 1954.' 'Hydrochemistry by I. J. Winograd, 1965.' 'Interior--Geological Survey, Reston, Virginia--1975.' Relief shown by contours. Contour interval 200 feet. Shows township and range lines. Scale 1:250,000 (W 117°--W 115°/N 38°--N 36°). Series: Professional paper (Geological Survey (U.S.))
712-C. Issued as plate 3 from U.S. Geological Survey professional paper 712-C, Hydrogeologic and hydrochemical framework, south-central Great Basin, Nevada-California, with special reference to the Nevada Test Site, by I.J. Winograd, and William Thordarson, published in 1975 by the U.S. Geological Survey.

39 x 50 cm. Relief shown by hachures and spot heights. "Issued May 7th 1877-2nd ed. June 30th, 1881." "Expeditions of 1878 and 1879 under the command of 1st. Lieut. Geo. M. Wheeler, Corp. of Engineers U.S. Army." "Weyss Herman & Lang Del." Prime meridians: Washington, D.C. and Greenwich Geological map Probably originally published as part of the geological atlas which is an appendix to the Surveys' Report upon United States geographical surveys west of the one hundredth meridian. "Prof. John J. Stevenson, geological assistant." "By order of the honorable the Secretary of War under the direction of Brig. General A. A. Hunphreys, Chief of Engineers, U. S. Army." Original publisher: U.S. Geographical Surveys West of the 100th Meridian, Scale: 1 inch to 4 miles or 1: 253440.

'Hydrogeology by F.E. Rush, 1968. Geology adapted from Longwell and others 1965.' In lower left corner: ' Base: U.S. Geological Survey 1:250,000 topographic series; Las Vegas (1954).' At top of map: 'United States Department of the Interior, Geological Survey. Department of Conservation and Natural Resources, State of Nevada.' Relief shown by contoursIncludes township and range lines. Scale 1:250,000 (W 115°00´--W 114°15´/N 36°30´--N 36°15´). Series: Water resources-reconnaissance series report . Originally published as plate 1 in Water-resources appraisal of the lower Moapa-Lake Mead area, Clark County, Nevada / by F. Eugene Rush, published by State of Nevada Dept. of Conservation and Natural Resources in 1968 in volume 50 of the serial Water resources-reconnaissance series report.

At top of map: ' United States Department of the Interior, Geological Survey. Professional paper 712-C, plate 1. Prepared on behald of the U.S. Atomic Energy Commission.' At bottom of map: 'Base from U.S. Geological Survey, Caliente, Death Valley, Goldfield and Las Vegas, 1954. 100,00-foot grid based on Nevada coordinate system, central zone.' 'Hydrogeology by I. J. Winograd, 1965; geology by William Thordarson.' Relief shown by contours and spot heights. Shows township and range lines. Includes diagram of downward and upward cross-flow of water. Includes bibliographical references and index. Contour interval 200 feet. Scale 1:250,000 (W 117°--W 115°/N 38°--N 36°). Series: Professional paper (Geological Survey (U.S.), 712-C. Issued as plate 1 from Hydrogeologic and hydrochemical framework, south-central Great Basin, Nevada-California with special reference to the Nevada Test Site. Prepared on behalf of the U.S. Atomic Energy Commission by Isaac J. Winograd and William Thordarson. Published 1975 by U.S. Govt. Print. Off. in Washington.