Michigan Bar

The Michigan Bar is a gold mine located in Sacramento county, California at an elevation of 164 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Michigan Bar
Secondary: Cosumnes River

Commodity

Primary: Gold
Secondary: Platinum
Tertiary: Iridium
Tertiary: Osmium

Location

State: California
County: Sacramento
District: Cosumnes River Area

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Producer
Deposit Type: Stream Placer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough

Mineral Deposit Model

Model Name: Placer Au-PGE

Orebody

Form: STREAM SEDIMENT DEPOSITS

Structure

Not available

Alterations

Not available

Rocks

Name: Gravel
Role: Host
Age Type: Host Rock Unit
Age Young: Eocene

Name: Gravel
Role: Host
Age Type: Host Rock
Age Young: Eocene

Analytical Data

Analytical Data: PGE SAMPLE YIELDED 33.3% PT, 41.97% OS+IR, 18.88% IR, 13.58% AU (LOGAN, P. 109)
Analytical Data: PGE SAMPLE YIELDED 44.75% PT, 24.84% IR, 21.72% OS, 8.69% RH (MERTIE, TABLE 40)

Materials

Ore: Gold

Comments

Comment (Deposit): RIVER WAS DREDGED FOR SEVERAL MILES

Comment (Workings): DRIFT MINING, 1850'S-1860'S HYDRAULIC, 1930'S-1940'S A SMALL ACREAGE DREDGED

Comment (Deposit): RECORD M005603 AND M045270 HAVE BEEN MERGED AND DELETED.

Comment (Location): BETWEEN BRIDGE HOUSE AND MICHIGAN BAR. LOCATION GIVEN IS AT BRIDGE HOUSE RIVER CROSSING

References

Reference (Production): CLARK, 1970

Reference (Deposit): MERTIE, J.B., 1969, ECONOMIC GEOLOGY OF THE PLATINUM METALS: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 630, P. 94.

Reference (Deposit): CLARK, W.B., 1970, PLATINUM: CALIFORNIA DIVISION OF MINES AND GEOLOGY MINERAL INFORMATION SERVICE, V. 23, NO. 6, P. 115-123.

Reference (Deposit): CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 90.

Reference (Deposit): LOGAN, C.A., 1919, PLATINUM AND ALLIED METALS IN CALIFORNIA: CALIFORNIA STATE MINING BUREAU BULLETIN 85, P. 30-31.

California Gold

"Where to Find Gold in California" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in California. Read more: Where to Find Gold in California.