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| Data sets | Publications | Expeditions | Thesaurus |
Butte mining district  | |
|---|---|
| BT | United States |
| .Montana | |
| ..Butte mining district | |
| UF | Butte District |
| RT | mines |
| SN | Mining district in the Butte area in SW Montana. Before 1978, also search Butte Montana. Indexed with counties or regions as applicable. Added to Thesaurus in 1993. |