GEOLOGY OF THE EMPIRE QUADRANGLE, GRAND, GILPIN, AND CLEAR CREEK COUNTIES, COLORADO; GEOLOGICAL SURVEY PROFESSIONAL PAPER 616

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1969. Softcover. Item #46140

56 pages maps, thin section photographs, tables, references and index, plus the three folded maps in the rear pocket. A few creases, else a very good plus copy.

Price: $25.00