| Lat / long: | 37.59279, -107.77981 |
| Primary: | Gold |
| Gangue: | Calcite, Limonite |
| Discovery year: | 1883 |
| Operation type: | Unknown |
| Deposit type: | Vein |
| Production size: | None |
| Development status: | Occurrence |
| Host rock: | Twilight Gneiss |
| Host type: | Gneiss |
| Associated rock: | Electra Lake Gabbro |
| Associated type: | Gabbro |
| Structure: | San Juan Uplift, Needle Mtns Uplift |
| Tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Alteration processes: | Fe Oxidation |
| MRDS | D010864 |
| DEP | 10014197 |
| 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.57.}{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 1778} |
| Reporter | Schwochow, Stephen D. |