| Lat / long: | 38.61778, -105.94642 |
| Primary: | Manganese |
| Secondary: | Iron |
| Ore: | Limonite, Pyrolusite, Siderite |
| Discovery year: | 1933 |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1933 |
| Host rock: | Leadville Limestone |
| Host type: | Limestone |
| Associated rock: | Granodiorite (Calumet Granodiorite) |
| Associated type: | Diorite |
| Structure: | Southern Mosquito Range, Northern Sangre De Cristo Range, Fault Trending N-S; Pleasant Valley Syncline |
| Tectonic: | Central Cordillera (Southern Rocky Mountains) |
| Alteration processes: | Oxidation |
| MRDS | D010522 |
| DEP | 10101855 |
| Reference | {Deposit:: OSBORN, E.F. AND RAINWATER, E.H., 1934, GEOLOGY OF THE CALUMENT, CO LORADO MINING DISTRICT: ILLINOIS NORTHWESTERN UNIVERSITY UNPUBLISHED M ASTER OF ARTS THESIS, P. 132-133.}{Deposit:: SCOTT, G.R., TAYLOR, R.B., EPIS, R.C. AND WOBUS, R.A., 1978, GEOLOG IC MAP OF THE PUEBLO 10 X 20 QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS MAP I-1022, 1:250,000.}{Deposit:: BEHRE, C.H., JR., OSBORN, E.F., RAINWATER, E.H, 1936, CONTACT ORE D EPOSITION AT THE CALUMET IRON MINE, COLORADO: ECONOMIC GEOLOGY, V. 31, NO. 8, P. 804} |
| Reporter | Collins, Donna B. |