Mine detail: La Grange

Previously called 'Tuolumne River'

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Location

Lat / long: 37.66631, -120.47044

Resource(M)

Primary: Gold
Secondary: Platinum
Tertiary: Osmium, Iridium
Ore: Gold
Orebody form: STREAM SEDIMENT DEPOSITS

Production

Operation type: Unknown
Deposit type: Stream Placer
Production size: Small
Development status: Producer

Geology

Host rock:Ione Formation
Host type:Gravel
Tectonic:Base Of Sierra Nevada Foothills

References

MRDSM045327
DEP10038057
Reference{Deposit:: LOGAN, C.A., 1919, PLATINUM AND ALLIED METALS IN CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 85, P. 33}{Deposit:: CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 85-86.}{Deposit:: CLARK, W.B., 1970, PLATINUM: CALIFORNIA DIVISION OF MINES AND GEOLOGY MINERAL INFORMATION SERVICE, V. 23, NO. 6, P. 115-123.}
ReporterBlair, Will N., Peterson, Jocelyn A.