Cross, Whitman. [MAP] Geological Map of Bassick HIll and Vicinity, Colorado (1896). New York: Julius Bien & Co., 1896. [9169]
11 1/4 x 14 1/2 inches, a beautiful and unusual color map showing aspects of the geology of this region, suitable for framing. Very good.
Extracted from the Seventeenth Annual Report, U. S. Geological Survey.