The A-J Burkhart is a gold mine located in Mariposa 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.
A-J Burkhart MRDS details
Site Name
Primary: A-J Burkhart
Commodity
Primary: Gold
Tertiary: Copper
Location
State: California
County: Mariposa
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: B. F. And Ruth L. Burkhart
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1925
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
Form: PINCH AND SWELL
Structure
Not available
Alterations
Not available
Rocks
Name: Andesite
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic
Analytical Data
Not available
Materials
Ore: Pyrite
Ore: Gold
Ore: Chalcopyrite
Gangue: Quartz
Comments
Comment (Production): WORKED INTERMITTENTLY UP TO THE FALL OF 1954; MOST RECENT OPERATION BY RICHARDSON BROS. TERMINATED MAY, 1954. RECENT PRODUCTION SMALL WITH ORE AVERAGING ABOUT 0.4 OZ. OF GOLD PER TON.
Comment (Deposit): VEIN
Comment (Workings): FIRST OPENED IN 1920'S WHEN A 220-FT. ADIT WAS DRIVEN; A 150 FT. SHAFT AND 3 LEVELS 35 FT. APART ARE THE PRINCIPAL ACTIVE WORKINGS.
Comment (Deposit): ONE UNPATENTED CLAIM. VEIN MINERALS INCLUDE PYRITE, CHALCOPYRITE AND FREE GOLD WITH MINOR AMOUNTS OF GREEN COPPER CARBONATES.
Comment (Deposit): Discovery Year: 1920'S
Comment (Commodity): MINOR AMOUNTS GREEN CU CARBONATES
Comment (Location): PROBABLY NE 1/4 - UTM EST.
References
Reference (Deposit): BOWEN O. E., JR., & GRAY, H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIF.: CALIF. JOUR. MINES & GEOL., VOL. 53 , NOS. 1 & 2 , P. 232 .
Reference (Deposit): WALLACE, R. E., ETAL, 1957 , THE MINERAL INDUSTRY OF CALIF.: U. S. BUR. OF MINES MINERALS YEARBOOK FOR 1954 , VOL. 3 , P. 220 .
Reference (Production): BOWEN AND GRAY, 1957
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.
