Mine detail: Black Rock Group

Previously called ''

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Location

Lat / long: 37.76824, -117.84373

Resource(B)

Tertiary: Iron, Manganese, Phosphorus-Phosphates, Silica
Other material: Chalcedony, Chert, Psilomelane, Pyrolusite, Wad
Discovery year: 1939

Production

Operation type: Surface-Underground
Development status: Prospect

Geology

References

MAS320090017
DEP10173462
Reference{Deposit:: U.S.B.M. R.I.5446,TRENGROVE,1959}{Deposit:: USBM R.I. #4717,BENSON,1950}{Deposit:: NEVADA BUREAU OF MINES & GLG.,BULL.#78,P.58}
ReporterMcmahan