U.S. Bureau of Mines Publications, Alaska | |
U.S. Bureau of Mines Open File Report 23-72 |
Title: | Rotary Drilling Exploration of the Ryan Lode Properties, Fairbanks Mining District, Alaska | |
Author: | Robert S. Warfield and B.I. Thomas | |
Year: | 1972 | |
Pages: | 21 pp., 4 sheets. | |
Availability: | OFR 23-72 (PDF format, 818 Kb) |
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