| Lat / long: | 38.25463, -120.88519 |
| Primary: | Copper |
| Secondary: | Lead, Zinc |
| Ore: | Chalcopyrite, Galena, Pyrite, Sphalerite |
| Gangue: | Quartz |
| Operation type: | Unknown |
| Production size: | Small |
| Development status: | Producer |
| Host type: | Metavolcanic Rock |
| Structure: | Faults; 3 Types, 1)East Dipping High-Angle Strike Faults, 2)Low-Angle Reverse Faults, Strike N50w - N., Dip 25 - 50 E. 3)High-Angle Faults, Strike Ne. Folds With Awplitudes 1 - 6 Ft., Plunge 78 - 84 N, Most Overturned With Axial Planes Dipping Eastward At High Angles. |
| Alteration processes: | Sericitization, Silicification, Pyritization. |
| MRDS | M004856 |
| DEP | 10028069 |
| Reference | {Deposit:: AUBURY, L.E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL. 50 ; CALIF. MIN. BUR., P. 225}{Deposit:: GOODWIN, J.G., 1957 , LEAD AND ZINC IN CALIFORNIA; CALIF. JOUR. MINE AND GEOLOGY; VOL 53 , NO. 314 , P. 419}{Deposit:: HEYL, G.R., 1948 , GRAYHOUSE AREA, AMADOR COUNTY, CALIFORNIA; COPPER IN CALIFORNIA BULL 144 ; DIV. OF MINES, P. 85 - 91} |
| Reporter | Gere, W., Fraticelli, L. A. (Albers, J.) |