U.S. Bureau of Mines Publications, Alaska | |
U.S. Bureau of Mines Open File Report 15-87 |
Title: | Feasibility of Economic Zinc, Copper, Silver, and Gold Mining in the Porcupine Mining Area of the Juneau Mining District, Alaska | |
Author: | Donald W. Baggs & G.E. Sherman | |
Year: | 1987 | |
Pages: | 28 pp. | |
Availability: | OFR 15-87 (PDF format, 1,042 Kb) |
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