| Lat / long: | 38.95102, -119.2707 |
| Primary: | Copper |
| Secondary: | Silver |
| Tertiary: | Gypsum-Anhydrite, Gold |
| Ore: | Bornite, Chalcocite, Chalcopyrite, Chrysocolla, Covellite, Pyrite |
| Orebody form: | IRREGULAR |
| Operation type: | Unknown |
| Deposit type: | Sedimentary |
| Production size: | Small |
| Development status: | Past Producer |
| Host rock: | Rhyolite To Dacite Volcanics;Qtz. Monzonite Porphyry |
| Host type: | Limestone |
| Associated rock: | Andesite To Dacite Tuff Breccia;Rhyolite, Tuff, Siltstone, Limestone |
| Associated type: | Monzonite,Diorite |
| Structure: | Yerington Batholith |
| Tectonic: | Complex Basin And Range Faulting |
| Alteration processes: | Shallow Oxidation, Albitic, Sericitic, Propylitic, Week Potassic |
| MRDS | M035873 |
| DEP | 10037697 |
| Reference | {Deposit:: READ, T. T., 1912 , THE NEVADA DOUGLAS MINES, MINING AND SCIENTIFIC PRESS}{Deposit:: KNOPF, A., 1918 , GEOLOGY AND ORE DEPOSITS OF THE YERINGTON DIST., NEV. USGS PROF. PAPER 114 .}{Deposit:: EINAUDI, M. T., 1977 , PETROGENISIS OF THE COPPER-BEARING SKARN AT THE MASON VALLEY MINE, YERINGTON, NEV., ECON. GEOL., VOL. 70 , NO. 5 .} |
| Reporter | Fiebelkorn, J. B. (Stewart, J. H.) |