COPPER DEPOSITS OF THE ENCAMPMENT DISTRICT, WYOMING; GEOLOGICAL SURVEY PROFESSIONAL PAPER 25. Arthur C. Spencer.

COPPER DEPOSITS OF THE ENCAMPMENT DISTRICT, WYOMING; GEOLOGICAL SURVEY PROFESSIONAL PAPER 25

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1904. Softcover. Item #43316

107 pages numerous sectional illustrations and index, plus the required two folded maps in the rear pocket. Rear pocket split at folds. Chipping to cover edges. Spine repaired with black conservation tape. A good copy.

Price: $20.00