Jumper & Golden Rule Group

The Jumper & Golden Rule Group is a gold mine located in Tuolumne county, California at an elevation of 1,348 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

Name: Jumper & Golden Rule Group

State:  California

County:  Tuolumne

Elevation: 1,348 Feet (411 Meters)

Commodity: Gold

Lat, Long: 37.91, -120.41333

Map: View on Google Maps

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.


Satelite image of the Jumper & Golden Rule Group

Jumper & Golden Rule Group MRDS details

Site Name

Primary: Jumper & Golden Rule Group


Commodity

Primary: Gold
Secondary: Silver


Location

State: California
County: Tuolumne
District: Mother Lode Belt


Land Status

Land ownership: Private
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
Years of Production:
Organization:
Significant: N
Deposit Size: M


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

Analytical Data: FREE MILLING GOLD ORE OCCURS WITH 2 % PYRITE


Materials

Ore: Gold
Ore: Pyrite
Gangue: Ankerite
Gangue: Quartz


Comments

Comment (Production): MOSTLY LOW GRADE ORE PRODUCED

Comment (Geology): GEOL.DESC: THE JUMPER MINE WORKED ALONG A DIKE, INTRUDED BETWEEN AMPHIBOLITE SCHIST WALLS WHERE SMALL VEINS AND QUARTZ STRINGERS CUT THE 5 TO 50 FT. THICK SCHISTOSE ZONE. THIS MINE DIFFERENT FROM OTHER MINES ON THE MOTHER LODE, AT THIS LOCALITY, IN THAT NO CONTINUOUS ORE SHOOTS OCCUR. THE FOOTWALL OF THE VEIN IS A HARD ALTERED DIORITE AND SERPENTINE WITH A DIORITE AND DIABASE HANGING WALL.

Comment (Deposit): THIS GROUP OF CLAIMS INCLUDED JUMPER, NEW ERA, AND GOLDEN RULE MINES.

Comment (Deposit): POCKET GOLD WAS COMMON HERE.

Comment (Workings): 3 INCLINED SHAFTS; NEWS ERA 1400 FT, GOLDEN RULE 500 FT., WEST VEIN SHAFT 200 FT. WINZE AT 1400 FT. LEVEL ON NEW ERA, 400 FT.; WINZE AT 493 FT. LEVEL OF GOLDEN RULE, 800 FT. ON 70 DEGREE INCLINE.


References

Reference (Deposit): TUCKER, W.B., 1914 , TUOLUMNE COUNTY: CMB REPT. 14 , P. 152 - 153


California Gold

Where to Find Gold in California

"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.