O.B.J. Mine

The O.B.J. Mine is a gold mine located in Inyo county, California at an elevation of 3,451 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: O.B.J. Mine
Secondary: Panamint Mines Co.
Secondary: Tyler and Aster

Commodity

Primary: Gold
Secondary: Silver
Secondary: Lead
Tertiary: Iron
Tertiary: Manganese

Location

State: California
County: Inyo
District: South Park

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
Discovery Year: 1893
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: LENTICULAR, PINCH-SWELL

Structure

Type: R
Description: First Fault System Is An Overthrust Of Large Displacement. Other Is A Normal Fault System Of Small Displacement. Encrustations Of Gypsum Everywhere Visable On Both Veins.

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: NODULES OF SULFIDES IN ASTER MINE ASSAYED FROM 8.20-9.75 OZ/TON IN GOLD.

Materials

Ore: Gold
Ore: Galena
Ore: Pyrite
Gangue: Gypsum
Gangue: Quartz

Comments

Comment (Deposit): CONSOLIDATED WITH THURMAN AND ASTER MINES COMPRISING 14 CLAIMS. SEE PANAMINT MINES CO. TOTAL 14 CLAIMS ; INFO.SRC : 1 PUB LIT

Comment (Reserve-Resource): HANGING WALL SHOOT OF 4 FT. THICKNESS, VALUE $21.32/TON FROM 750 TONS, FULL THICKNESS OF VEIN, 15-FT., VALUE $4.50/TON FROM 15,000 TONS. DATA FOR ASTER MINE.

Comment (Deposit): BRECCIATED VEINS. WHERE VEINS ARE THICK, BRECCIATION OF QUARTZ CONFINED TO PORTIONS ADJACENT TO WALLROCK. ORE OCCURS AS A LOOSE, FRIABLE VEIN-FILLING OF BRECCIATED QUARTZ AND AS BRECCIATED SCHIST WALLROCK. ORES OF TYLER MINE OCCUR IN FIRST CASE WHILE ORE OF ASTER MINE REPRESENTATIVE OF LATTER. ORE BODIES 1-30 FT. IN THICKNESS SEPARATED BY PINCHES IN VEIN OR LENSES OVERLAPPING WITH NARROW LAYERS OF SCHIST INBETWEEN.

Comment (Workings): 2000 FT. SEPARATE WORKINGS ON TYLER AND ASTER MINES. PRINCIPAL DEVEL. ON TYLER MINE. 900-FT. TUNNEL ON 4TH LEVEL DRIVEN SE, 800 FT. FROM PORTAL, CUTS FAULT STRIKING N20W, DIP 20 SW. ANOTHER FAULT KNOWN AS "THE CUT-OFF FAULT" WAS FOUND ON SURFACE ABOUT 150 - 200 FT. EAST OF MAIN TUNNEL. STRIKE NW, DIP 45 NE. VEIN NOT ENCOUNTERED IN MAIN TUNNEL, SUPPOSITION BEING THAT IT WAS DISPLACED BY ONE OR BOTH OF THESE FAULTS. AT 200 FT. FROM PORTAL, DRIFT RUN WEST 100 FT. RAISE ENCOUNTERED VEIN 20 FT. ABOVE LEVEL. VEIN INTACT 200 FT. VERTICALLY, TO SURFACE. ON LEVEL 80 FT. ABOVE TUNNEL LEVEL, VEIN PROSPECTED FOR 400 FT. WITH MUCH STOPING. ONE STOPE ABOVE THIS LEVEL WAS 90-FT. LONG, 100-FT HIGH AND 22 FT. WIDE. 2 SHAFTS, KNOWN AS NORTH SHAFT AND SOUTH SHAFT, 200 FT. APART, WERE SUNK ON THIS LEVEL. DEVEL. AT ASTER MINE CONSISTED OF A SENIS OF OPEN CUTS, 60-FT. SHAFT AND 100-FT. TUNNEL.

Comment (Location): UTM EST. LOCATION PROJECTED, LAND UNSURVEYED

Comment (Production): ORE AVG. $12/TON IN GOLD. IN JULY, 1932, 8 TONS OF SELECTED ORE SHIPPED FROM OPEN CUTS. RETURNED $135/TON, OF WHICH 9.5% WAS PB, 10 OZ. AG AND REMAINDER OF VALUES IN GOLD. NO OTHER PRODUCTION RECORDS FOUND.

References

Reference (Deposit): NORMAN, L.A., JR. AND STEWART, RICHARD M., 1951, MINES AND MINERAL RESOURCES OF INYO COUNTY: CALIF. JOURNAL OF MINES AND GEOLOGY, V. 47, NO. 1, P. 159

Reference (Deposit): TUCKER, W.B. AND SAMPSON, R.J., 1938, MINERAL RESOURCES OF INYO COUNTY: CALIF. JOUR. MINES AND GEOLOGY, V. 34, NO. 4, P. 413-414

Reference (Deposit): TUCKER, W.B., 1926, MINES AND MINERAL RESOURCES OF INYO COUNTY, CALIF: CALIF. JOUR. MINES AND GEOLOGY, V. 22, NO. 4, P. 471-472

Reference (Deposit): SAMPSON, R.J., 1932, MINERAL RESOURCES OF A PART OF THE PANAMINT RANGE: CALIF. JOUR. MINES AND GEOLOGY, V. 28, P. 371-372

Reference (Production): SAMPSON (1932) TUCKER (1926)

Reference (Reserve-Resource): SAMPSON (1932)

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.