'U.S. Department of Agriculture, Bureau of Chemistry and Soils; C.A. Browne, Acting Chief; Curtis F. Marbut, in charge, Soil Survey.' 'Macy H. Lapham, Inspector, District 5. Soils surveyed by F.O. Youngs, in charge, and E.J. Carpenter.' 'Field Operations, Bureau of Soils, 1923.' 'A, Hoen & Co. Lith. Baltimore, Md.' Shows township and range lines. Scale [1:63,360]. 1 in. = 1 mile (W 114°45´--W 114°18´/N 36°51´--N 36°24´). Library's copy has hand-written notes and has hand-drawn maps and notes on verso.
'Cartography by Marj Thielke.' 'Prepared in cooperation with the State of Nevada, Department of Conservation and Natural Resources, Division of Water Resources.' Relief shown by contours. Shows township and range lines. Originally published as Plate 1 in Water-level changes associated with ground-water development in Las Vegas Valley, Nevada, 1971-75 : fourth progress report--summary of data / by James R. Harrill, published in 1976 by the Department of Conservation and Natural Resources, Division of Water Resources, as volume 22 of Water resources-information series report. Scale [ca. 1:69,696. 1 in.=approx. 1.1 miles] (W 115°20´--W 115°00´/N 36°20´--N 36°00´).
58 x 46, on sheet 88 x 84 cm., fold. in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Contour interval 20 feet." "Prepared in cooperation with the U.S. Atomic Energy Commission." Title on envelope: Geologic map of the Oak Spring Quadrangle, Nye County, Nevada. Includes 3 col. cross sections, text, and quadrangle location map. Original publisher: Interior, Geological Survey, Series: Geologic quadrangle map GQ, Scale: 1:24 000.