TUNGSTEN REOURCES OF THE BLUE WING DISTRICT, LEMHI COUNTY, IDAHO; STRATIGIC MINERALS INVESTIGATIONS, 1941: GEOLOGICAL SURVEY BULLETIN 931-A. Eugene Callaghan, Dwight M. Lemmon.

TUNGSTEN REOURCES OF THE BLUE WING DISTRICT, LEMHI COUNTY, IDAHO; STRATIGIC MINERALS INVESTIGATIONS, 1941: GEOLOGICAL SURVEY BULLETIN 931-A

Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1941. Softcover. Item #45676

21 pages with foldout projections of the Ima Mine. Bound in original stiff gray paper covers with lettering printed in black. Signature of geologist Olaf P. Jenkins on the front cover. A very good copy.

Price: $20.00