Scale 1:24,000. (W 109 052ʹ30ʺ--W109 045ʹ00ʺ/N 37 052ʹ30ʺ--N 37 045ʹ00ʺ).
Note:
"The aerial photographs used for photogeologic interpretation were taken in October and November 1952, and May and June 1953."--from margin. "Prepared in cooperation with the U.S. Atomic Energy Commission."--from margin.