Generalized hydrogeologic map of lower Moapa-Lake Mead area, Clark County, Nevada, 1968

'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.