Buckhorn

The Buckhorn is a mine located in Alameda county, California at an elevation of 2,700 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: Buckhorn

Commodity

Tertiary: Manganese

Location

State: California
County: Alameda

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Owner Name: Oakland Area Council, Boy Scouts Of America
Years: 1950 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Name: Chert
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous

Analytical Data

Not available

Materials

Not available

Comments

Comment (Production): NO RECORD OF ANY PRODUCTION. THE GRADE OF THE ORE EXPOSED IN THE LARGER OPEN CUT IS ESTIMATED TO BE 15 PERCENT MANGANESE. NO ORE WAS SEEN ON THE DUMP IN 1943. THE INCLINE WAS DRIVEN ALONG A 5 FT. LAYER OF MASSIVE CHERT WHICH LIES PARALLEL TO THE ENCLOSING GREEN CHERT AND SHALE, STRIKE OF THE BEDS N. 35 DEG. W. DIP 30 DEG. W. THE SMALL OPEN CUT EXPOSES A 3-FT. LAYER OF MASSIVE CHERT WITH MANGANESE STAINS; THE LARGE CUT EXPOSES BED OF SILICEOUS ORE 1.5 FT. THICK, 10 FT. LONG, STRIKE N. 70 DEG. W. AND DIP 50 DEG. S

Comment (Workings): THREE WORKINGS, A 30 FT. INCLINE, A SMALL OPEN CUT AND A LARGER OPEN CUT

Comment (Geology): GEOL.DESC: THREE LOCATIONS INDICATING MASSIVE CHERT WITH MANGANESE OXIDE STAINS; LYING WITHIN THIN BEDDED GREEN CHERTS AND SHALE. IN SOME PLACES THE BEDS ARE ALTERED TO SILICEOUS OXIDE ORE.

Comment (Location): LOCATED IN SW 1/4 SE 1/4 SECTION 31

References

Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 46, NO. 2, APRIL 1950, P.343, PL. 58

Reference (Deposit): DOM BULL. 125, P.97

Reference (Deposit): BULL. 152, P.16

Reference (Deposit): BULL. 140 , PL. 1 (GEOLOGY)

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.