Browse TRAIL Inventories

Blue-Ledge copper-zinc mine, Siskiyou County, Calif.

Investigation of the Minah lead-silver mine, Jefferson County, Mont.

Preliminary investigation of the Red Flats nickel deposit, Curry County, Oreg.

Exploration and utilization studies :John Day chromites, Oregon

Preliminary investigation of the Takilma-Waldo copper district, Josephine County, Oreg.


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