38 x 49 cm. Relief shown by hachures and spot heights. "Atlas sheet no. 61(D)." "Issued Jan. 10th 1878." "Expeditions of 1873, 74, 75 & 76 under the command of 1st. Lieut. Geo. M. Wheeler, Corps of Engineers, U.S. Army." Prime meridians: Washington, D.C. and Greenwich. Includes sectional diagram showing how atlas sheets fit together. "Weyss, Lang & Herman, del." "By order of the honorable the Secretary of War." "Under the direction of Brig. General A. A. Hunphreys, Chief of Engineers, U. S. Army." " J. C. Spiller, Louis Nell, topographical assistants." "Expeditions of 1873, 74, 75 & 76 under the command of 1st. Lieutenant William L. Marshall, Corps of Engineers, U. S. Army, 1st Lieutenant Eric Bergland, Corps of Engineers, U. S. Army, Executive Officers and field astronomers." 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 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.

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.