| Lat / long: | 46.28323, -111.95087 |
| Primary: | Silver, Gold, Lead, Copper |
| Secondary: | Bismuth |
| Ore: | Bismuthinite, Bournonite, Galena, Magnetite, Pyrite, Sphalerite, Tetradymite, Tetrahedrite |
| Gangue: | Aragonite, Diopside, Dolomite, Quartz, Serpentine |
| Orebody form: | IRREGULAR |
| Discovery year: | 1875 |
| Operation type: | Unknown |
| Production size: | Yes |
| Development status: | Past Producer |
| First production started: | 1875 |
| Host rock: | Turnley Formation, Metamorphosed Shale;;Limestones, Shale;Madison Formation, Limestone; Quadrant Formation, Quartzite |
| Host type: | Limestone |
| Structure: | Boulder Batholith, Extensive Folding Axis N-S With Prevailing Eastward Dip. |
| Tectonic: | East Margin Of Boulder Batholith |
| Alteration processes: | Oxidation |
| MRDS | W002871 |
| DEP | 10069281 |
| Reference | {Deposit:: WEED, W.H., 1901, GEOLOGY AND ORE DEPOSITS OF THE ELKHORN MINING DISTRICT, JEFFERSON CO., MONTANA, 22 ANN. REPT. USGS P. 399-549}{Deposit:: KNOPF, A., 1913, ORE DEPOSITS OF THE HELENA MINING REGION, MONTANA USGS BULL. 527. P. 128-139.}{Deposit:: PARDEE, J. T. AND F. C. SCHRADER, 1933, METALLIFEROUS DEPOSITS OF THE GREATER HELENA MINING REGION, USGS BULL. 842 P. 299-303.}{Deposit:: 1901 GEOLMAP WEED, W.H., COMPLEX GEOLOGIC INVESTIGATION}{Deposit:: 1913 COMPILE KNOPF, A.}{Deposit:: 1933 COMPILE PARDEE & SCHRADER} |
| Reporter | Bilbey, Sue A. |