Lingua: Inglese
Editore: U. S. Geological Survey, D.C.
Da: Legacy Books, Louisville, KY, U.S.A.
No Binding. Condizione: Good. 1966, folding map, 36x30 inches, housed in a 9x12 printed pocket. Some underlining in the marginal text notes, else G. Department of the Interior United States Geological Survey. The scale is 1:24,000; contour interval is 20 feet.