Sunset

The Sunset is a chromium mine located in Del Norte county, California at an elevation of 3,924 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: Sunset
Secondary: Darnell

Commodity

Primary: Chromium
Tertiary: Palladium
Tertiary: Rhodium
Tertiary: Ruthenium
Tertiary: Iridium
Tertiary: Platinum

Location

State: California
County: Del Norte

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

Not available

Ownership

Owner Name: C. H. Bennett
Years: 1942 -

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: Pacific Border Province
Physiographic Section: Klamath Mountains

Mineral Deposit Model

Model Name: Podiform chromite (minor)

Orebody

Form: KIDNEY SHAPED PODS

Structure

Type: L
Description: Strong Shear, Striking N35w And Dipping 75ne, Hosts Ore

Alterations

Alteration Type: L
Alteration Text: Ultramafic Rocks Are Serpentinized

Rocks

Name: Peridotite
Role: Associated
Age Type: Host Rock
Age Young: Late Jurassic

Name: Peridotite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Jurassic

Name: Peridotite
Role: Associated
Age Type: Associated Rock
Age Young: Late Jurassic

Analytical Data

Analytical Data: IR=490 PPB
Analytical Data: RH=6 PPB.
Analytical Data: RU=160 PPB
Analytical Data: PD=<1 PPB
Analytical Data: 1 PGE ANALYSIS: PT=26 PPB

Materials

Ore: Chromite
Gangue: Olivine

Comments

Comment (Deposit): RECORD W023551 HAS BEEN MERGED AND DELETED.

Comment (Workings): OPEN CUT 95 FT LONG AND INCLINED SHAFT 25 FT DOWN DIP

Comment (Location): UNSURVEYED. IN SIX RIVERS NATIONAL FOREST. ON WEST SIDE OF GORDON MOUNTAIN. UTM IS FOR PGE SAMPLE SITE LOCATION. LAT/LONG GIVEN IS FOR PROSPECT SYMBOL SHOWN ON TOPO MAP ABOUT 0.1 MI NORTH OF ELEVATION MARKER; UTM FOR THIS IS 4627880N, 427920E.

Comment (Deposit): SIZE GIVEN IS FOR LARGEST KIDNEY OF ORE

Comment (Reserve-Resource): THERE MAY BE 900 TONS OF ORE LEFT

References

Reference (Deposit): CARLSON, C.A., AND OTHERS, 1985, ANALYSES FOR PLATINUM-GROUP ELEMENTS IN SAMPLES FROM PODIFORM CHROMITE DEPOSITS, CALIFORNIA AND OREGON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-442, 14 P.

Reference (Deposit): O'BRIEN, J.C., 1952, MINES AND MINERAL RESOURCES OF DEL NORTE COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY V. 48, NO. 4, P. 293.

Reference (Deposit): WELLS, F.G., CATER, F.W., JR., AND RYNEARSON, G.A., 1946, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 134, PT. 1, CH. 1, P. 57.

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.