| Lat / long: | 40.03318, -123.48528 |
| Primary: | Copper |
| Secondary: | Silver, Gold |
| Tertiary: | Iron |
| Ore: | Cubanite, Pyrrhotite, Sphalerite |
| Gangue: | Calcite, Gypsum, Quartz |
| Orebody form: | LENTICULAR |
| Operation type: | Unknown |
| Deposit type: | Replacement |
| Production size: | Small |
| Development status: | Past Producer |
| Production years: | 1915 - 1930 |
| Host type: | Shale,Siltstone |
| Associated type: | Andesite |
| Structure: | Homocline With Beds Of Shale And Graywacke, Paralleling General Strike Of Graywacke And Shale Are Several Notable Faults Marked By Depressions, Shear Zones And Landslides. |
| Alteration processes: | Silicification |
| MRDS | W017588 |
| DEP | 10072353 |
| Reference | {Deposit:: *RIEN, J.C., 1965 : MINES AND MINERALS, TRINITY COUNTY, CA.: CALIF. DIV. MINES AND GEOLOGY, COUNTY REPT. 4, P. 21 , 62}{Deposit:: STINSON, M.C., 1957 : GEOLOGY OF THE ISLAND MOUNTAIN COPPER MINE, TRINITY COUNTY, CA.: CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NOS. 1 & 2 : DIV. OF MINES, P. 9 - 33}{Production:: *RIEN, J.C., 1965 , P. 21} |
| Reporter | Weeks, Robert, Fraticelli, L. A. (Albers, J.) |