| Location: | Fremont County, Colorado, United States, North America |
| Lat / long: | 38.50779, -105.69697 |
| dep_id: | 10013260 |
| mrds_id: | D009457 |
| Commodity type: | metallic |
| Major mineral: | Copper |
| Minor mineral: | Silver |
| Trace mineral: | Vanadium |
| Operation type: | Underground |
| Production size: | Small ammount of material produced |
| Development status: | Past Producer |
| ore: | Chalcocite, Malachite, Silver |
| gangue: | Barite |
| work_type: | Unknown |
| model: | 197: Sediment-hosted Cu |
| alteration: | Oxidized To Reddish, Yellowish, Or Red-Brown Color |
| conc_proc: | Reduction |
| ore_ctrl: | Carbonaceous Shales, Coal Seams Control Ore |
| Reporter: | Collins, Donna B., Keller, John W. |
| hrock_unit: | Minturn Formation, Belden Formation;Harding Sandstone; Manitou Limestone (?) |
| hrock_type: | Shale,Siltstone,Sandstone,Coal,Black Shale |
| arock_type: | Conglomerate |
| Structure: | Cotopaxi Fault lies just east of the shaft., Thirtynine Mile Volcanic Field, Cotopaxi Fault |
| tectonic: | Central Cordillera (Southern Rocky Mountains) |
| Year first produced: | 1907 |
| yr_lst_prd: | 1907 |
| disc_yr: | 1875 |
| References: |
- Deposit:: LINDGREN, WALDEMAR, 1908, NOTES ON COPPER DEPOSITS IN CHAFFEE, FREMONT, AND JEFFERSON COUNTIES, COLORADO: USGS BULLETIN 340, P. 170-174.
- Deposit:: BUTLER, J.R., 1954, GEOLOGY OF AN AREA NORTH OF COTOPAXI, FREMONT COUNTY, COLORADO: M. S. THESIS, UNIVERSITY OF COLORADO, P. 47-48.
- Deposit:: TAYLOR, R.B., SCOTT, G.R., WOBUS, R.A., EPIS, R.C., 1975, RECONNAISSANCE GEOLOGIC MAP OF THE COTOPAXI 15-MINUTE QUADRANGLE, FREMONT AND CUSTER COUNTIES, COLORADO: USGS MAP I-900, 1:62,500.
- Deposit:: SCOTT, G.R., 1975, HISTORIC TRAIL MAPS OF THE PUEBLO 1 DEGREE X 2 DEGREES QUADRANGLE, COLORADO: USGS MAP I-930, 1:250,000
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