Topographic map of Lake Mead quadrangle, Nevada and Arizona, 1979

'Edited and published by the Bureau of Land Management. Base map prepared by the U.S. Geological Survey.' 'Surface management status by BLM, 1981.Minerals management status by BLM, 1981.' Relief shown by contours and spot heights. Contour interval 50 meters. Compiled from USGS maps dated 1952-1970. Revised from aerial photographs taken 1972-73. Map edited 1979. Includes location map and index to 1:24,000 and 1:62,500-scale maps. Shows minerals owned by the federal government. 'N3600--W11400/30x60.' 'SE/4 Las Vegas (NJ 11-12) 1:250,000-scale map.' Scale 1:100,000universal transverse Mercator proj. (W 115°00'--W 114°00'/N 36°30'--N 36°00'). Series: Surface-minerals management status. United States. Bureau of Land Management. Surface-minerals management status. Filing title: Lake Mead, Nev.--Ariz., 1979. Shows township and range lines. Published by United States, Dept. of the Interior, Bureau of Land ManagementDenver, Colo. : For sale by U.S. Geological Survey,