(W 118⁰08ʹ00ʺ--W 117⁰18ʹ00ʺ/N 37⁰41ʹ00ʺ--N 36⁰30ʹ00ʺ).
Relief shown by contours and spot heights.
Compiled from USGS 1:24,000 and 1:62,500-scale topographic maps dated 1949-70. Planimetry revised from aerial photographs taken 1972-76. Map edited 1978. Printed June 1986.
Includes desert access index map and U.S.G.S. topographic index.