| Lat / long: | 47.12464, -109.55163 |
| Primary: | Gypsum-Anhydrite |
| Ore: | Anhydrite, Gypsum |
| Orebody form: | BEDDED |
| Operation type: | Unknown |
| Deposit type: | Sedimentary |
| Production size: | Yes |
| Development status: | Past Producer |
| First production started: | 1916 |
| Host rock: | Ellis Group, Piper Formation, Gypsum-Bearing;Ellis Group, Otter Formation, Limestones & Shales;Big Snowy Group, Otter Formation, Limestones & Shales |
| Host type: | Limestone |
| Structure: | Hanover Laccolithic Domal Structure - All Beds Dip Away From Central Portion Of Uplift |
| MRDS | W014731 |
| DEP | 10071385 |
| Reference | {Deposit:: MILLER, R. N., 1959, GEOLOGY - SOUTH MOCCASIN MTS., FERGUS COUNTY, MONTANA, MT. BUREAU MINES & GEOLOGY MEMOIR 37.}{Deposit:: PERRY, E. S., 1949 , GYPSUM, LIME & LIMESTONE IN MONTANA, MT. BUREAU MINES & GEOLOGY MEMOIR 29 .}{Deposit:: ROBERTSON, A. F., 1950, MINES & MINERAL DEPOSITS - FERGUS COUNTY, U. S. BUREAU MINES INF. CIRC. 7544.}{Production:: MILLER, 1959, M.B.M.G. MEMOIR 37.} |
| Reporter | Mlynarczyk, Meg S. |