Browse TRAIL Inventories

Mining methods and costs of the Quartz Hill Mining Co., Dewey, Mont.

Gold lode mining in the Tobacco root mountains, Madison county, Mont.

Mining and milling methods and costs of the Golden Messenger Mine of the United Gold Mines Corporation, York, Mont.

Gold mining and milling in Idaho County, Idaho

Gold mining and milling in northeastern Oregon

Mining and milling methods and costs of the Golden Anchor Mining Co., Burgdorf, Idaho

Reconnaissance of placer mining districts in Idaho County, Idaho

Reconnaissance of placer-mining districts in Lemhi County, Idaho

Clark Fork lead-zinc district, Bonner County, Idaho

Anderson zinc-lead prospect, Stevens County, Wash.

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


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