| Location: | La Plata County, Colorado, United States, North America |
| Lat / long: | 37.59751, -107.7762 |
| dep_id: | 10101876 |
| mrds_id: | D010866 |
| Commodity type: | metallic |
| Major mineral: | Silver |
| Trace mineral: | Copper, Lead, Zinc, Gold |
| Operation type: | Unknown |
| Deposit type: | Vein |
| Production size: | Small ammount of material produced |
| Development status: | Past Producer |
| ore: | Chalcopyrite, Galena, Pyrite, Sphalerite |
| gangue: | Calcite, Hematite, Limonite, Quartz |
| model: | 85: Polymetallic veins |
| alteration: | Fe Oxides; Cu Carbonates; Silicification |
| ore_ctrl: | Nw-Se And Wnw-Ese-Trending Faults And Fractures |
| Reporter: | Schwochow, Stephen D. |
| hrock_unit: | Twilight Gneiss;Ouray And Leadville Limestones |
| hrock_type: | Gneiss,Limestone |
| arock_unit: | Electra Lake Gabbro;Monzonite Porphyry And Quartz Trachyte |
| arock_type: | Monzonite,Gabbro,Trachyte |
| Structure: | San Juan Uplift, Needle Mtns Uplift, Unnamed Faults |
| tectonic: | Central Cordillera (Southern Rocky Mtns) |
| yr_lst_prd: | 1925 |
| disc_yr: | 1883 |
| References: |
- 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.
- 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:: HENDERSON, C.W., 1926, MINING IN COLORADO, A HISTORY OF DISCOVERY, DEVELOPMENT, AND PRODUCTION: USGS PROF. PAPER 138. P. 177-178.
- Deposit:: BURCHARD, H.C., 1884, COLORADO--LA PLATA COUNTY, IN REPORT OF THE DIRECTOR OF THE MINT, UPON THE PRODUCTION OF PRECIOUS METALS IN THE UNITED STATES DURING THE CALENDAR YEAR 1883: GPO, P. 368-376.
- Deposit:: BLM MINERAL SURVEYS MS 1778, 1779, 20762.
- Deposit:: STEVEN, T.A., AND OTHERS, 1974, GEOLOGIC MAP OF THE DURANGO QUADRANGLE, SOUTHWESTERN COLORADO: USGS MAP I-764.
- Deposit:: COLORADO DIV. MINES INF. REPT.
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