| Lat / long: | 37.61335, -105.26889 |
| Primary: | Iron |
| Tertiary: | Gold, Silver |
| Ore: | Hematite, Magnetite |
| Orebody form: | TABULAR |
| Operation type: | Underground |
| Deposit type: | Replacement |
| Production size: | Small |
| Development status: | Past Producer |
| First production started: | 1881 |
| Last production ended: | 1883 |
| Host rock: | Minturn Formation |
| Host type: | Limestone |
| Associated rock: | Monzonite Porphyry |
| Associated type: | Monzonite |
| Structure: | Sierra Blanca Massif, Ft. Garland Embayment, Vega Cr. Anticline, Wagon Mesa Fault |
| Tectonic: | Central Cordillera (Southern Rocky Mtns.) |
| MRDS | D006730 |
| DEP | 10087417 |
| Reference | {Deposit:: PATTON, H.B., AND OTHERS, 1910, GEOLOGY OF THE GRAYBACK MINING DISTRICT, COSTILLA COUNTY, COLORADO: CGS BULL. 2.}{Deposit:: WARNER, L.A., AND OTHERS, 1959, OCCURRENCES OF NONPEGMATITIC BERYLLIUM IN THE UNITED STATES: USGS PROF. PAPER 318, P. 165.}{Deposit:: HARRER, C.M., AND TESCH, W.J., JR., 1959, RECONNAISSANCE OF IRON OCCURRENCES IN COLORADO: USBM IC-7918, P. 22.} |
| Reporter | Schwochow, Stephen D. |