| Lat / long: | 37.62612, -107.80953 |
| Primary: | Silver, Copper, Lead |
| Secondary: | Gold, Zinc |
| Ore: | Chalcopyrite, Galena, Sphalerite |
| Gangue: | Calcite, Hematite, Malachite, Quartz |
| Discovery year: | 1953 |
| Operation type: | Unknown |
| Production size: | None |
| Development status: | Occurrence |
| Host rock: | Ouray Limestone;Leadville Limestone |
| Host type: | Limestone |
| Associated rock: | Monzonite Porphyry;Quartz Trachyte |
| Associated type: | Monzonite,Trachyte |
| Structure: | San Juan Uplift, Needle Mtns Uplift |
| Tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Alteration processes: | Oxidation Of Cu Sulfide And Fe Minerals |
| MRDS | D010868 |
| DEP | 10094664 |
| Reference | {Deposit:: SCOTT, D.C., 1983, MINERAL INVESTIGATION OF THE WEST NEEDLE WILDERNESS STUDY AREA AND THE BLM WEST NEEDLE CONTIGUOUS WILDERNESS STUDY AREA, LA PLATA AND SAN JUAN COUNTIES, COLORADO: USBM MLA 35-83, P. 8, 17.}{Deposit:: BARKER, FRED, 1969, PRECAMBRIAN GEOLOGY OF THE NEEDLE MOUNTAINS, SOUTHWESTERN COLORADO: USGS PROF. PAPER 644-A.}{Deposit:: CROSS, WHITMAN, AND HOLE, A.D., 1910, DESCRIPTION OF THE ENGINEER MOUNTAIN QUADRANGLE: USGS FOLIO 171.}{Deposit:: BLM MINERAL SURVEY MS 20762}{Deposit:: COLORADO DIV. MINES INF. REPT.} |
| Reporter | Schwochow, Stephen D. |