Ketchikan Mining District Area

Mineral Investigations in the Ketchikan Mining District, Southeastern Alaska. Maas, et al. U.S. Bureau of Mines. U.S. Bureau of Mines OFR 11-95. 1995

Economic Feasibility of Mining in the Ketchikan Mining District, Alaska. Coldwell and Gensler. U.S. Bureau of Mines OFR 6-95. 1995