'Henry Gannett, chief geographer ; A.H. Thompson, geographer in charge ; triangulation by H.M. Wilson ; topography by H.M. Wilson and Powell survey.' 'Edition of Mar. 1892, reprinted 1929.' Handwritten legend on right-side margin of map. Original publisher: Dept. of the Interior, U.S. Geological Survey. Scale 1:250,000polyconic proj. (W 115°--W 114°/N 37°--N 35°).
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.
Stamped : 'Approved (Signed) A. Maguire, Assistant Chief Engineer.' In lower right corner: '6-W-74.' Some annotations written over in yellow; black dotted line added between forebay and final spring in the northwest. Scale [ca. 1:6,000] 1 in.=500 feet