| Location: | Phillips County, Montana, United States, North America |
| Lat / long: | 47.93132, -108.55634 |
| dep_id: | 10071371 |
| mrds_id: | W014713 |
| Commodity type: | metallic and nonmetallic |
| Major mineral: | Gold, Silver |
| Trace mineral: | Fluorine-Fluorite |
| Operation type: | Unknown |
| Production size: | Production occurred |
| Development status: | Producer |
| ore: | Gold, Pyrite |
| gangue: | Fluorite, Quartz, Sericite |
| orebody_fm: | SHOOTS |
| work_type: | Surface/Underground |
| alteration: | Sericitization |
| conc_proc: | Ores Believed To Be Implaced By Hydrothermal Ascending Solutions |
| ore_ctrl: | Ore Confined To Narrow Crushed Zones Between Faults |
| Reporter: | Mlynarczyk, Meg S. |
| hrock_unit: | Deadwood Formation, Limestone & Shales;Gneisses And Schists |
| hrock_type: | Syenite |
| arock_unit: | Syenite Porphyry Laccolith |
| arock_type: | Syenite |
| Structure: | Little Rocky Mts. - Domal Uplift Formed By Underlying Intrusions Of Tert. Syenite Porphyry, A Group Of High Angle Gravity Faults Radiate From Dom* Center In The Porphyry |
| tectonic: | Rocky Mountain Foreland |
| Year first produced: | 1903 |
| disc_yr: | 1897 |
| References: |
- Deposit:: DYSON, J. L., 1953, RUBY GULCH GOLD MINING DISTRICT: IN BILLINGS GEOL. SOC. 4TH ANN. FIELD CONF., SEPT. 1953, LITTLE ROCKY MTS. MT, AND S.W. SASKATCHEWAN.
- Deposit:: EMMONS, W. H., 1908, GOLD DEPOSITS OF THE LITTLE ROCKY MTNS, MONTANA, U.S. GEOLOGICAL SURVEY BULL. 340.
- Production:: HUBBARD ET AL, 1964, U.S.B.M. INF. CIRC. 8229., MBMG MEM. 31
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