| Lat / long: | 40.50081, -105.21115 |
| Primary: | Silver, Tungsten, Gold |
| Ore: | Pyrite, Scheelite |
| Gangue: | Epidote, Hematite, Montmorillonite, Quartz |
| Operation type: | Unknown |
| Deposit type: | Vein |
| Production size: | Small |
| Development status: | Producer |
| Host rock: | Tonalite;Metasedimentary Rocks--Mica Schist |
| Host type: | Tonalite |
| Associated rock: | Tonalite |
| Associated type: | Tonalite |
| Structure: | Front Range Uplift, Cheyenne Basin, Big Thompson Anticline, Milner Mountain Fault, Fletcher Hill (Buck Horn) Fault, Masonville Anticline, Buckhorn Syncline, Masonville Stock , Redstone Fault |
| Tectonic: | Central Cordillera (Southern Rocky Mtns) |
| Alteration processes: | Hydrothermal Montmorillonite In Fractures |
| MRDS | D010552 |
| DEP | 10013973 |
| Reference | {Deposit:: WOLFE, J.A., 1953, GEOLOGY OF THE MASONVILLE MINING DISTRICT, LARIM ER COUNTY, COLORADO: COLORADO SCHOOL OF MINES M.SC. THESIS T-789.}{Deposit:: BRADDOCK, W.A., AND OTHERS, 1970, GEOLOGIC MAP OF THE MASONVILLE QU ADRANGLE, LARIMER COUNTY, COLORADO: USGS MAP GQ-832.}{Deposit:: COBB, H.S., 1960, TUNGSTEN MINES OF COLORADO: COLORADO METAL MINING FUND BD., P. 49.}{Deposit:: BELSER, CARL, 1956, TUNGSTEN POTENTIAL IN CHAFFEE, FREMONT, GUNNISO N, LAKE, LARIMER, PARK, AND SUMMIT COUNTIES, COLORADO: USBM IC-7748, P . 18.} |
| Reporter | Schwochow, Stephen D. |