Oak Hill

The Oak Hill is a copper mine located in Tuolumne county, California at an elevation of 840 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: Oak Hill  

State:  California

County:  Tuolumne

Elevation: 840 Feet (256 Meters)

Commodity: Copper

Lat, Long: 37.72139, -120.45389

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 Oak Hill

Oak Hill MRDS details

Site Name

Primary: Oak Hill


Commodity

Primary: Copper
Secondary: Silver
Secondary: Gold


Location

State: California
County: Tuolumne


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

Type: Underground


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: M


Physiography

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


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Type: L
Description: Quartz Dike On Eastern Wall, 30 - 40 Ft. Wide, Crops Out On Surface And Is Traced Over 350 Ft.


Alterations

Not available


Rocks

Not available


Analytical Data

Not available


Materials

Ore: Chalcocite
Ore: Chalcopyrite
Ore: Pyrite
Gangue: Quartz


Comments

Comment (Commodity): OXIDES, CARRYING A FAIR AMOUNT OF GOLD FOUND FROM SURFACE TO DEPTH OF 100 FT. BELOW THIS CHALCOCITE, PYRITE IS ENCOUNTERED. AT ABOUT 300 FT. CHALCOPYRITE IS REACHED.

Comment (Production): NO PRODUCTION RECORDED; ORE SHIPPED DURING FIRST PERIOD VARIED; (AU, .22 , .71 AND .62 OZ/TON) (AG, 2.38 , 7.11 AND 6.16 OZ/TON) (CU, 4.9 , 10.5 AND 20.9 %).

Comment (Workings): ONE PRINCIPAL SHAFT WITH THREE LEVELS.

Comment (Geology): GEOL.DESC: GANGUE ROCK CONSISTS OF CLAY SHALE, GENERALLY SHOWING A FOLIATED STRUCTURE, ALSO FORMING HOMOGENEOUS MASSES WITHOUT ANY REGULAR CLEVAGE.

Comment (Deposit): TWO ORE SHOOTS, ONE CLOSE TO EASTERN WALL, THE OTHER NEAR WESTERN BOUNDRY.


References

Reference (Deposit): AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL. 50 ; CALIF. MIN. BUR., P. 250 - 251

Reference (Deposit): LOGAN, C. A., 1928 , SACRAMENTO FIELD DIVISION ; 24TH REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 7.

Reference (Deposit): OLSEN MINE ALSO

Reference (Deposit): ALSO IN SECS 30 31

Reference (Production): LOGAN, C. A., 1928 , P. 7 (SEE REF.)


California Gold

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"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.