Baxter Winthrope

The Baxter Winthrope is a copper mine located in Shasta county, California at an elevation of 938 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: Baxter Winthrope
Secondary: Baxter
Secondary: Winthrope
Secondary: Copper City

Commodity

Primary: Copper
Secondary: Gold
Secondary: Silver

Location

State: California
County: Shasta
District: East Shasta Copper-Zinc

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/Underground

Ownership

Not available

Production

Year: 1863
Material type: ORE
Description: Ap_Grade: ^8% Cu, $40/Ton Au $20/Ton Ag.

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: Klamath Mountains

Mineral Deposit Model

Not available

Orebody

Form: LENTICULAR

Structure

Type: L
Description: Shear Zone - N 20 Degrees E

Alterations

Not available

Rocks

Name: Rhyolite
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic

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

Name: Rhyolite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Jurassic

Analytical Data

Not available

Materials

Gangue: Limonite

Comments

Comment (Geology): GEOL.DESC: SHEAR ZONES CUT EAST LIMB OF ANTICLINE IN BUDDY HILL RHYOLITE. MUCH OF COUNTRY ROCK IS STRONGLY SILICIFIED.

Comment (Production): 119 TONS OF SULFIDE ORE IN 1926-1927

Comment (Deposit): SULFIDE DEPOSITS ARE IN BULLY HILL RHYOLITE ON THE EAST FLANK OF A SOUTHWARD PLUNGING ANTICLINE.

Comment (Workings): CLAIMS ARE THE EXCELSIOR, BROWN, HUMBOLDT AND BAXTER. PRINCIPLE WORK CONSISTED OF DRIFTING AT 3 LEVELS, 815 , 936 AND 1,060 FT IN ALTITUDE ALONG COPPER CITY SHEAR ZONE. WINTHROP ADIT WAS STOPED TO SURFACE.

References

Reference (Deposit): ALBERS, J. P. & ROBERTSON, J. F., 1961 , GEOLOGY AND ORE DEPOSITS, EAST SHASTA COPPER-ZINC DISTRICT, GEOLOGICAL SURVEY PROFESSIONAL PAPER 338 , PG. 100

Reference (Deposit): AUBURY, L. E., 1902 , REGISTER OF MINES AND MINERALS NO. 10 - 12 , CALIF. MIN. BUR. PG. 8

Reference (Deposit): LOGAN, C. A., 1926 , 22ND REPORT OF THE STATE MINERALOGIST, CALIF. MIN. BUR. PG. 146

Reference (Deposit): LYDON, P. A. & O'BRIEN, J. C., 1974 , MINES AND MINERAL RESOURCES OF SHASTA COUNTY CALIF., COUNTY REPORT 6 , CALIF. DIV. MINES AND GEOLOGY, PG. 104

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.