| Basis for focus area |
Red-bed copper-silver deposits. |
| Identified resources |
Historical production of copper and silver. |
| Production |
Troy mine (1981-1993): 180,000 lbs Cu and 44.4 million oz Ag. |
| Status |
Past mining; currently in permitting stage (Revett Minerals). |
| Estimated resources |
Troy mine: Proven and Probable reserves of 16.45 million tons @ 1.04 opt Ag and 0.36% Cu, contained 17.1 million oz Ag and 119.75 million lbs Cu. |
| Geologic maps |
Vuke and others (2007), scale 1:500,000. |
| Geophysical data |
Inadequate aeromagnetic and aeroradiometric data. |
| Favorable rocks and structures |
Contiguous, shallow-dipping ore body that can be traced throughout the Cabinet Mountains. |
| Deposits |
Troy Lake mine (MRDS dep_id: 10124835). |
| Evidence from mineral occurrences |
MRDS; Montana Bureau of Mines and Geology Mining Archives; Gammons and others (2020). |
| Geochemical evidence |
None. |
| Geophysical evidence |
None. |
| Evidence from other sources |
Unknown. |
| Cover thickness and description |
Unknown. |
| Authors |
Kaleb C. Scarberry. |
| New data needs |
Geologic mapping, geophysical, and geochemical surveys. |
| Geologic mapping and modeling needs |
Geologic mapping. |
| Geophysical survey and modeling needs |
High resolution geophysical survey. |
| Digital elevation data needs |
Lidar inadequate. |
