Folsom

The Folsom is a gold mine located in Sacramento county, California at an elevation of 226 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: Folsom
Secondary: Folsom-Natoma District
Secondary: American River District
Secondary: Capital Dredging Co.
Secondary: Natomas Co.

Commodity

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

Location

State: California
County: Sacramento
District: Folsom District

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Natomas Co.
Years: 1962 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Stream Placer
Operation Type: Unknown
Year First Production: 1848
Year Last Production: 1962
Discovery Year: 1860
Years of Production:
Organization:
Significant: N
Deposit Size: M

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: TABULAR

Structure

Not available

Alterations

Not available

Rocks

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

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

Name: Gravel
Role: Host
Age Type: Associated Rock Unit
Age Young: Pliocene

Analytical Data

Analytical Data: AVERAGE OF 5 PGE SAMPLES YIELDED 43.40% PT, 20.81% IR, 30% OS (EST) (LOGAN)

Materials

Ore: Gold

Comments

Comment (Geology): GRAVELS ARE IN OR ALONG THE AMERICAN RIVER AND NEAR LOWER CONTACTS OF THE LAGUNA AND MEHRTEN FORMATIONS.

Comment (Deposit): RECORD W017627, W024652, W024654 AND W024643 HAVE BEEN MERGED AND DELETED.

Comment (Location): TAILINGS ALSO LOCATED IN CARMICHAEL AND CITRUS HEIGHTS QUADRANGLES. LOCATION GIVEN IS NEAR WATER TREATMENT PONDS ON BUFFALO CREEK IN QUADRANGLE BY THE SAME NAME.

Comment (Production): IN 1958 GRAVELS= 0.0017 OZ/TON AU (58 PPB); 1914-1916 PT= 0.00017 OZ/TON (6 PPB)

Comment (Workings): DREDGING

References

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): CARLSON, D.W., 1955, MINES AND MINERAL RESOURCES OF SACRAMENTO COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 51, NO. 2, P. 137, 140-142, 186, PL. 2.

Reference (Deposit): LOGAN, C.A. 1919, PLATINUM AND ALLIED METALS IN CALIFORNIA: CALIFORNIA STATE MINING BUREAU BULLETIN 85, P. 27-29.

Reference (Deposit): CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 47-49.

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.