Expansion

The Expansion is a gold mine located in El Dorado county, California at an elevation of 1,362 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

Name: Expansion  

State:  California

County:  El Dorado

Elevation: 1,362 Feet (415 Meters)

Commodity: Gold

Lat, Long: 38.71556, -120.89750

Map: View on Google Maps

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.


Satelite image of the Expansion

Expansion MRDS details

Site Name

Primary: Expansion


Commodity

Primary: Gold


Location

State: California
County: El Dorado


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

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


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Not available


Analytical Data

Analytical Data: ALL GOLD IN SULFIDES


Materials

Ore: Pyrite
Ore: Gold
Gangue: Quartz


Comments

Comment (Location): UTM ACC SE 1/4 OF SW 1/4 SEC

Comment (Deposit): VEIN

Comment (Workings): DEVELOPED BY 150 FT CROSS CUT ADIT

Comment (Commodity): DISSEMINATED PYRITE

Comment (Production): NO PRODUCTION RECORD FOUND ACTIVE 1900 - 1904 , PROSPECTED IN 1936


References

Reference (Deposit): CLARK, W. B., AND CARLSON, D. W., 1956 , MINES AND MINERAL RESOURCES OF EL DORADO CO., CALIF.: CALIF. JOUR. OF MINES AND GEOL., VOL. 52 , NO. 4 , PG. 500 AND PL 10 .

Reference (Deposit): LOGAN, C. A., 1938 , MIN. RESOURCES OF EL DORADO CO.: CALIF. JOUR. OF MINES AND GEOL., VOL. 34 , NO. 3 , PG. 229 .


California Gold

Where to Find Gold in California

"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.