Richardson, G.B., and George Otis Smith

GEOLOGIC ATLAS OF THE UNITED STATES; CASTLE ROCK FOLIO, COLORADO; FOLIO 198

Washington, DC: United States Geological Survey [USGS], 1915. First edition. Large folio. Very Good. Item #37069

Printed wrappers. Thirteen pages with "Description of the Castle Rock Quadrangel," with three pages of maps showing, besides geologic features, roads, railroads and towns, one page with Columnar Section, and two pages of photographs. Mildly soiled covers. A very good copy.

Price: $45.00