A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reconnaissance of placer-mining districts in Lemhi County, Idaho
History; production; description of region; geology; vein sources are associated with granite; details of deposits and operations, by districts; bucket line dredging; dragline plants; hydraulicking; shoveling, ground sluicing, and small scale hydraulic operations.
Reconnaissance of placer-mining districts in Lemhi County, Idaho
History; production; description of region; geology; vein sources are associated with granite; details of deposits and operations, by districts; bucket line dredging; dragline plants; hydraulicking; shoveling, ground sluicing, and small scale hydraulic operations.
Reconnaissance of placer-mining districts in Lemhi County, Idaho
U S Bur Mines -- Information Cir
Lorain, S.H. (author) / Metzger, O.H. (author)
1939
81 pages
Supp plates
Report
English
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