The Blackjack is a mine located in Fresno 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.
Blackjack MRDS details
Site Name
Primary: Blackjack
Commodity
Tertiary: Copper
Location
State: California
County: Fresno
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
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: 2 1/2 % CU
Materials
Not available
Comments
Comment (Deposit): ORE ZONE 150 FT. WIDE
Comment (Workings): TWO SHAFTS 125 AND 20 FT. RESPECTIVELY, THE FORMER HAVING TWO CROSSCUTS AND AN 18 FT. DRIFT. SMALL TONNAGE OF HIGH GRADE ORE ON DUMP.
Comment (Geology): GEOL.DESC: HANGING WALL IS SCHIST, FOOTWALL GRANITE
Comment (Commodity): OCCASIONAL HIGH GRADE BUNCHES
References
Reference (Deposit): BRADLEY, W.W., 1914 ; FRESNO COUNTY, 14 TH REPT. STATE MIN.; CALIF. MIN. BUR., P. 437
Reference (Deposit): ERIC, J.H., 1948 , TABULATION OF COPPER DEPOSITS IN CALIFORNIA IN COPPER IN CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 144 , P. 233
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.
