The Eagle's Head is a gold mine located in Amador 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.
Eagle's Head MRDS details
Site Name
Primary: Eagle's Head
Commodity
Primary: Gold
Tertiary: Manganese
Location
State: California
County: Amador
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: State Of California
Home Office: California
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Deposit Type: Residual
Operation Type: Unknown
Discovery Year: 1941
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
Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Psilomelane
Gangue: Hematite
Gangue: Limonite
Gangue: Anauxite
Comments
Comment (Location): LOCATED IN N 1/2 SECTION 4
Comment (Production): ASSAYS ARE SAID TO RUN OVER 40 PERCENT MANGANESE, BUT WHILE THIS MIGHT BE TRUE OF AN INDIVIDUAL SMALL SPECIMENT THE MATERIAL IN SIGHT WOULD PROBABLY RUN LESS THAN 10 PERCENT MANGANESE. NO SOLID BED OF MANGANESE ORE WAS SEEN AND DEPOSIT IS SUPERFICIAL. CLAIM IN AN ABANDONED HYDRAULIC GOLD PROPERTY - SAME AS BIG GULCH LATERITIC SOIL IS NEARBY, CONTAINING HEMATITE, LIMONITE, AND ANAUXITE
Comment (Geology): GEOL.DESC: CONCENTRATION OF 10 % GRADE MANGANESE OXIDE (MAINLY PSILOMELANE) IN LATERITIC SOILS BENEATH TERTIARY LAVA CAP. RHYOLITE TUFF AND CLAY ARE AT BASE OF LAVA CAP, AND BELOW THIS IS A DEEP REGOLITHIC BRECCIA OR RESIDUAL SOIL. THE MANGANESE OXIDES OCCUR AS COATINGS, PATCHES, AND CEMENT MIXED WITH CLAY.
Comment (Deposit): LIMESTONE ALSO IN THIS SEC. (S 1/2)
References
Reference (Deposit): CALIF. JOUR. MINES & GEOL. V. 50, NO. 1, JAN. 1954, P. 268
Reference (Deposit): DOM BULL. 152, P. 29
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.
