| Location: | Judith Basin County, Montana, United States, North America |
| Lat / long: | 46.8713, -110.34472 |
| dep_id: | 10070455 |
| mrds_id: | W013397 |
| Commodity type: | nonmetallic |
| Major mineral: | Gemstone |
| Operation type: | Unknown |
| Production size: | Production occurred |
| Development status: | Producer |
| orebody_fm: | DIKE |
| work_type: | Underground |
| ore_ctrl: | Monchiquite Dike |
| Reporter: | Berg, Richard B. (Krohn, D. H.) |
| hrock_unit: | Madison Limestone |
| hrock_type: | Limestone |
| Structure: | East Flank Of Domal Uplift Little Belt Mts. |
| Year first produced: | 1895 |
| disc_yr: | 1880 |
| discr: | J. Hoover |
| References: |
- CLABAUGH, S. E., 1952, CORUNDUM DEPOSITS OF MONTANA: U.S. GEOLOGICAL SURVEY BULL. 983, P. 6 - 3
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