Uncle Sam Mine

The Uncle Sam Mine is a gold mine located in Sierra county, California.

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: Uncle Sam Mine
Secondary: Simpson
Secondary: Verrue
Secondary: Yates
Secondary: Keller

Commodity

Primary: Gold
Tertiary: Silver

Location

State: California
County: Sierra

Land Status

Not available

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Not available

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: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Ore: Pyrite
Ore: Gold
Ore: Marcasite
Gangue: Quartz

Comments

Comment (Workings): 14 DEGREE INCLINED SHAFT 1037 FT., 700 FT. X-CUT TO 55 DEGREE INCLINED SHAFT 75 FT. TO 1ST LEVEL, 100 FT. TO 2ND 250 FT. OF DRIFTS.

Comment (Geology): 2-18 FT. THICK VEIN & LENSES W CHLORITIC SCHIST & BLACK COAL (?) FOOTWALL & HARD DIORITE HANGING WALL. VEIN MAY CHANGE FROM 60 NE TO 80 SE. MARKED CHANGE IN VEIN AFTER PASSING WATER LEVEL. MACBOYLE, 1920 , CONSIDERS ORE THE MOST PECULIAR EVER FOUND IN THE DISTRICT. TO A POINT 30 FT. BELOW THE VEIN CONTAINED CONSIDERABLE IRON SULFIDES. SOME GOLD & TRACES OF SILVER. FURTHER DOWN THE SULFIDES ARE DISPLACED BY ARSENICAL MINERALS W HIGHER AU CONTENT & A RAPID INCREASE IN AG VALUES.

Comment (Deposit): OWNERS ( MACBOYLE, 1920 ): J. G. BINNING, ALLEGHANY; O. T. OWENS, H. T. GOULD, FOREST. BONDED TO NORTH FORK MINING CO., 1301 MERCHANTS NATIONAL BANK BLD, S. F.; A. RUSSELL, 1301 MERCHANTS NAT. BANK BLD., S. F., PRESIDENT; L. TASHEIRA, 405 CROCKER BLD, SECRETARY. GRAVEL RIGHTS REBONDED TO WISCONSIN & N. FORK GRAVEL MINES CO. ; INFO.SRC : 1 PUB LIT

Comment (Commodity): MACBOYLE, 1920 , ESTIMATED 2000 TONS OF $7/TON ORE EXPOSED. IN 1914 ORE CARRIED EQUAL VALUES OF AU & AG.

Comment (Production): WORK IN EARLY DAYS FOR GRAVEL YIELDED $100,000 BEFORE VEIN WAS DISCOVERED AND VEIN PRODUCTION BEGAN IN 1910 .

Comment (Deposit): VEIN, ORE SHOOT

References

Reference (Production): MACBOYLE, 1920

Reference (Deposit): AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL, VOL 38 , NO 1 , P. 66 .

Reference (Deposit): MACBOYLE, E., 1920 , MINES AND MINERAL RESOURCES SIERRA CO.: CSMB 16TH REPORT STATE MINERALOGIST, DEC 1918 , P. 131 , 132 .

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.