Michigan Bar District

Sacramento County, California, United States

Gold Silver PGE

Land & claims · BLM · live

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BLM MLRS ↗Claims at this point ↗Surface mgmt ↗

Surface manager + active mining claims at this point, live from BLM. The "open to location" notes are a general 1872-Mining-Law guide, not BLM output — decision-support only; verify with BLM MLRS and on the ground before staking or entry.

Commodities

PrimaryGold

SecondarySilver, PGE

Commodity typeMetallic

Deposit

Deposit typeStream placer

Model119: Placer Au-PGE

Orebody formIrregular

Ore controlMechanical accumulation within stream-channel lag gravels, bars, and point-bar deposits.

Materials

Ore mineralsGold, Platinum

GangueQuartz

Geology

Host rockSand and Gravel · Ione Formation

Economic & production

Development statusPast Producer

Discovery year1850

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References

Clark, W. B., 1970, Gold districts of California: California Divisions of Mines and Geology Bulletin 193, p. 90.Carlson, D.W., 1955, Mines and mineral resources of Sacramento County, California: California Journal of Mines and Geology, v. 51, no. 2, p. 134-143.Koschmann, A.H., and Bergendahl, M.H., 1968, Principal gold-producing districts of the United States: U. S. Geological Survey Professional Paper 610, 283 p.Logan, C.A., 1919, Platinum and allied metals in California: California State Mining Bureau Bulletin 85, 120 p.Wagner, D.L. and others, 1981, Geologic map of the Sacramento Quadrangle, California: California Department of Conservation, Division of Mines and Geology Regional Geologic Map Series, Map No. 1A, scale 1:250,000.

Identification

Deposit ID10310648

RegionNA

Data scoreB

Coordinates38.49953, -121.04481