| Lat / long: | 37.61169, -105.27528 |
| Primary: | Iron |
| Secondary: | Gold, Silver |
| Ore: | Hematite, Magnetite, Pyrite, Chalcopyrite |
| Gangue: | Calcite, Garnet, Epidote |
| Operation type: | Underground |
| Deposit type: | Replacement |
| Production size: | None |
| Development status: | Past Producer |
| Host rock: | MaderaFormation |
| 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 | D006731 |
| DEP | 10011662 |
| Reference | PATTON, H.B., AND OTHERS, 1910, GEOLOGY OF THE GRAYBACK MINING DISTRICT, COSTILLA COUNTY, COLORADO: CGS BULL. 2 |
| Reporter | Schwochow, Stephen D. |