| Lat / long: | 45.00548, -109.9319 |
| Primary: | Silver, Lead, Zinc |
| Ore: | Argentite, Galena, Pyrite, Sphalerite |
| Orebody form: | SHOOTS |
| Discovery year: | 1875 |
| Operation type: | Unknown |
| Production size: | Yes |
| Development status: | Producer |
| Host rock: | Gallatin Limestone, Thin-Bedded Limestones & Shales;Gros Ventre Formation, Limestone & Shale |
| Host type: | Limestone |
| Structure: | Fracture System Believed Result Of Large, Pre-Mineral, East - West Fault Between Irma & Republic Mines |
| MRDS | W014715 |
| DEP | 10071372 |
| Reference | {Deposit:: REED, G. C., 1950, MINES & MINERAL DEPOSITS - PARK COUNTY, MONTANA, U.S. BUREAU MINES INF. CIRC. 7546.}{Deposit:: MCCARTHY AND LAKIN, 1956, GEOCHEMICAL PROSPECTING BY SOIL ANALYSES IN MONTANA, MT BUREAU MINES & GEOLOGY BULL. 7.}{Deposit:: LOVERING, T. S., 1929, THE NEW WORLD OR COOKE CITY MINING DISTRICT, PARK CO., MT, U.S. GEOLOGICAL SURVEY BULL. 811-A.}{Production:: REED, 1950, USBM IC 7546, USBM MINERALS YEARBOOKS 1948-49} |
| Reporter | Mlynarczyk, Meg S. |