Modoc

The Modoc is a gold mine located in Trinity county, California at an elevation of 4,751 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: Modoc
Secondary: Wagner

Commodity

Primary: Gold
Secondary: Iron

Location

State: California
County: Trinity
District: New River

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

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1889
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

Not available

Orebody

Form: IRREGULAR SEAMS

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Gold
Gangue: Quartz
Gangue: Calcite
Gangue: Iron

Comments

Comment (Deposit): VEINS, ORE SHOOT 130 FT. LONG, 14 IN. THICK. CRAWFORD (1896) DESCRIBES SEAMS OF QUARTZ IN MATRIX OF DECOMPOSED SERPENTINE. ORE SHOOTS OCCUR WHERE NW-TRENDING CROSS FISSURES INTERSECT MAIN VEINS. LODES VARY FROM NARROW SHEARS TO BODIES SEVERAL FT. THICK. GOLD IN OXIDIZED ZONE WAS FREE AND OCCURRED WITH IRON OXIDES. BELOW THIS, IT WAS ASSOC. WITH PYRITE AND IN TELLURIDE FORM. SEE MACDONALD FOR MORE DETAILED DESCRIPTIONS.

Comment (Location): UTM EST. LAND UNSURVEYED FOR TOWNSHIP-RANGE. LOC. PROJECTED

Comment (Production): NO SPECIFIC PRODUCTION RECORD FOUND. SAID TO HAVE PRODUCED $20,000 ORE WAS FREE-MILLING & GOOD GRADE. SEVERAL POCKETS AND SMALL SHOOTS YIELDED $100/TON.

Comment (Deposit): 20 ACRES. INCLUDED BLACK WARRIOR, MIZPAH VEINS, RED FLAG AND BRUSH BROTHERS CLAIMS. ; INFO.SRC : 1 PUB LIT

Comment (Geology): SERPENTINE CONTACT FEW HUNDRED FT. TO NE. MACDONALD (1912) DESCRIBES COUNTRY ROCK AS GRANODIORITE, CUT BY SMALL LAMPROPHYRE DIKES, MANY OF WHICH PARALLEL LODES AND SEVERAL OF WHICH FORM HANGING WALLS OF VEINS. FAULT(S) OFFSET VEIN(S) - SEE SKETCH MAP AND FURTHER DESCRIPTIONS IN MACDONALD (1912)

Comment (Workings): 480 AND 160 FT. ADITS, 600 FT. OF DRIFTS AND STOPE (80 FT. BY 3 FT. BY 60 FT.) OTHER WORKINGS ON SMALLER VEINS.

References

Reference (Deposit): BROWN, G. CHESTER, 1913, THE COUNTIES OF SHASTA, SISKIYOU AND TRINITY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 14, PT. 4, P. 895

Reference (Deposit): CRAWFORD, J.J., 1896, THIRTEENTH REPORT OF THE STATE MINERALOGIST: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, VOL. 13, P. 456

Reference (Deposit): MACDONALD, D.F., 1912, GOLD LODES OF CARRVILLE DISTRICT, CA: U.S. GEOLOGICAL SURVEY BULL 530-D, P. 28-31

Reference (Production): BROWN (1913)

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.