Mine detail: Douglas Flat

Previously called ''

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Location

Lat / long: 38.12185, -120.45711

Resource(M)

Primary: Gold
Secondary: Platinum
Ore: Gold, Hematite, Magnetite
Orebody form: STREAM SEDIMENT DEPOSITS
Discovery year: 1848

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

MRDSM045331
DEP10038060
Reference{Deposit:: DAY, D.T., AND RICHARDS, R.H., 1906, USEFUL MINERALS IN THE BLACK SANDS OF THE PACIFIC SLOPE: U.S. GEOLOGICAL SURVEY MINERAL RESOURCES OF THE UNITED STATES, CALENDAR YEAR 1905, P. 1182-1183.}{Deposit:: CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 126.}{Deposit:: CLARK, W.B., AND LYDON, P.A., 1962, MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY COUNTY REPORT 2, P. 208.}
ReporterBlair, Will N., Peterson, Jocelyn A.