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Search U.S. government technical reports digitized or harvested by TRAIL.
Keyword Search
1 result returnedPublished Year
Subject
- Copper mines and mining -- California -- Amador County. (1)
- Copper mines and mining -- California -- Calaveras County. (1)
- Copper mines and mining -- California -- El Dorado County. (1)
- Copper mines and mining -- California -- Mariposa County. (1)
- Mine examination -- California -- Amador County. (1)
- Mine examination -- California -- Calaveras County. (1)
- Mine examination -- California -- El Dorado County. (1)
- Mine examination -- California -- Mariposa County. (1) *
- Zinc mines and mining -- California -- Amador County. (1)
- Zinc mines and mining -- California -- Calaveras County. (1)
- Zinc mines and mining -- California -- El Dorado County. (1)
- Zinc mines and mining -- California -- Mariposa County. (1)
Author
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