| Lat / long: | 45.86907, -112.35366 |
| Primary: | Gemstone |
| Ore: | Amethyst |
| Gangue: | Albite, Apatite, Biotite, Magnetite, Microcline, Muscovite, Quartz, Sericite, Sphene, Tourmaline |
| Orebody form: | LENS |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| Host rock: | Butte Quartz Monzonite |
| Host type: | Quartz Monzonite |
| Associated type: | Quartz Monzonite |
| Tectonic: | Boulder Batholith |
| Alteration processes: | Corrosion |
| MRDS | D004324 |
| DEP | 10010552 |
| Reference | {Deposit:: HEINRICH, E.W., 1949, PEGMATITE MINERAL DEPOSITS IN MONTANA: MONT. BUREAU OF MINES AND GEOLOGY MEMOIR 28, P 48-49}{Deposit:: 1949 RECON MBMG MEMOIR 2} |
| Reporter | Loen, Jeffrey S. (Pearson, Robert C.) |