The Eastern Cross Group is a gold mine located in Sierra county, California at an elevation of 4,350 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
Elevation: 4,350 Feet (1,326 Meters)
Commodity: Gold
Lat, Long: 39.46472, -120.82806
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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.
Eastern Cross Group MRDS details
Site Name
Primary: Eastern Cross Group
Secondary: Eastern Star
Commodity
Primary: Gold
Location
State: California
County: Sierra
Land Status
Not available
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: 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
Alteration Type: L
Alteration Text: Carbonate
Rocks
Name: Gabbro
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Quartz
Comments
Comment (Geology): COUNTRY ROCK MORE THAN USUALLY SCHISTOSE & CARRIES ABUNDANT QTZ STRINGERS PARALLEL TO SCHISTOSITY. GABBRO CROPS OUT IN E PT. OF CLAIM & IS THE W PROLONGATION OF GABBRO-SERPENTINE COMPLEX OF SE PART OF DISTRICT. SMALL OUTCROPS OF SERPENTINE. 4 VEINS ON PROPERTY. EASTERN CROSS & JEWEL DIP TO NE, EASTERN STAR & WESTERN CROSS TO THE NW. POSSIBLE REVERSE DISPLACEMENT ON EASTERN CROSS FISSURE NOT MORE THAN 50 FT. ADIT ACCESSIBLE IRREGULAR VEIN HAS 30-70 DEG. DIP, FOLLOWS WELL-DEFINED SLIP, W GABBRO HANGING WALL, SCHIST FOOTWALL. SOMETIMES NO QTZ. ELSE WHERE 6 IN - 2 FT THICK. WHERE COUNTRY ROCK IS GABBRO, THERES EXTENSIVE CARBONATE ALTERATION OF WALL ROCK. 2 REVERSE FAULTS, & DIP OF VEIN MAYBE DUE TO FAULT DRAG. MINOR THRUSTS ALONG VEIN PLANE. ON EASTERN STAR, SERPENTINE FOOTWALL ALTERED FOR A FEW FEET TO CARBONATE-MARIPOSITE, NEAR SILICIFIED SCHIST: VEIN IS CRUSHED ZONE IN SCHIST 3 FT THICK, STRIKES N 12 W DIPS 60 W. JEWEL VEIN ON W PART OF PROPERTY, STRIKES N 55 W, DIPS 75 NE.
Comment (Commodity): HIGH GRADE ORE NEAR WHERE VEIN CUTS & DISPLACES SERPENTINE DIKE RICH ANGULAR GRAVEL FROM JEWEL VEIN, PROBABLY, A SINGLE FRAGMENT CARRYING $1100 IN GOLD.
Comment (Location): UTM EST. SW 1/4 34, NW 1/4 02
Comment (Production): UPPER WORKINGS YIELDED $2500, PRIOR TO 1932. NO OTHER PRODUCTION RECORDS FOUND.
Comment (Deposit): VEIN
Comment (Workings): 1 ADIT ACCESSIBLE, OTHERS CAVED. ADIT IS 450 FT LONG.
References
Reference (Deposit): AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL, VOL 38, NO 1, P 54 .
Reference (Deposit): FERGUSON, H. G., & GANNETT, R. W., 1932 , GOLD QTZ VEINS OF THE ALLEGHANY DISTRICT, CALIF.;: USGS PROF PAPER 172, P 120 , 121 .
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.
