Mine detail: Hummingbird

Previously called ''

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Location

Lat / long: 39.63681, -122.61108

Resource(M)

Tertiary: Manganese
Ore: Psilomelane, Pyrolusite

Production

Operation type: Unknown
Production size: None
Development status: Occurrence

Geology

Host type:Clastic Sedimentary Rock

References

MRDSM008659
DEP10030503
Reference{Deposit:: CALIF. JOUR. MINES & GEOLOGY, V. 48, NO. 1, JAN. 1952, P. 50}{Deposit:: DOM BULL. 152, 1950, P. 59}
ReporterGere, W., Von Dohlen, E.; Albers, J.