Hammer Property

The Hammer Property is a gold mine located in Trinity county, California at an elevation of 449 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: Hammer Property  

State:  California

County:  Trinity

Elevation: 449 Feet (137 Meters)

Commodity: Gold

Lat, Long: 40.89056, -123.59306

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 Hammer Property

Hammer Property MRDS details

Site Name

Primary: Hammer Property
Secondary: South Fork Gold and Platinum Mining Co.


Commodity

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


Location

State: California
County: Trinity
District: Trinity River Area


Land Status

Land ownership: National Forest
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: Surface


Ownership

Owner Name: P. P. Hammer
Years: 1918 -


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: Klamath Mountains


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
Age Young: Holocene


Analytical Data

Analytical Data: PT:AU= 4 OZ/$1,000 (1:12.09) AT ONE PLACE (LOGAN, P. 87)


Materials

Ore: Gold


Comments

Comment (Location): IN SIX RIVERS NATIONAL FOREST. LOCATION GIVEN IS ON TRINITY RIVER BETWEEN SALYER AND CONFLUENCE WITH SOUTH FORK TRINITY RIVER. ACTUAL MINING TOOK PLACE ON BENCHES ABOVE STREAM LEVEL

Comment (Commodity): PGE COARSER THAN EXPECTED AND CONTAINS A LARGE PORPORTION OF OSMIRIDIUM

Comment (Production): OTHER GRADE RANGE OF 0.0026-0.0065 OZ/TON (90-220 PPB) AU ALSO REPORTED

Comment (Deposit): VALUES ARE IN SEVERAL OLDER BENCHES TO SEVERAL HUNDRED FEET ABOVE RIVER LEVEL

Comment (Workings): HYDRAULIC


References

Reference (Production): LOGAN

Reference (Deposit): LOGAN, C.A., 1919, PLATINUM AND ALLIED METALS IN CALIFORNIA: CALIFORNIA STATE MINING BUREAU BULLETIN 85, P. 86-87.

Reference (Deposit): CLARK, W.B., 1970, GOLD DISTRICTS OF CALIFORNIA: CALIFORNIA DIVISION OF MINES AND GEOLOGY BULLETIN 193, P. 143-144.


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.