The American Eagle is a copper and zinc 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.
American Eagle MRDS details
Site Name
Primary: American Eagle
Secondary: Bullion Hill
Secondary: Blue Bell
Secondary: And Bonanza
Commodity
Primary: Copper
Primary: Zinc
Secondary: Lead
Secondary: Gold
Secondary: Silver
Location
State: California
County: Mariposa
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Jack I. And Irene Kopp Et Al.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Discovery Year: 1890
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: L
Description: Schistosity Trends North, Rocks Extremely Fissile, Crinkled And Folded; Crinkles In Schistosity Plung 50 - 70 North Or South, Suggest Zone Of Shearing.
Alterations
Alteration Type: L
Alteration Text: Hydrothermal, Sericitization
Rocks
Not available
Analytical Data
Analytical Data: OBTAINED FROM (ZONE A), CU 1.53 - 11.01 %, ZN 2.59 - 8.29 %, PB .71 - 1.02 %, AU .01 - .22 OZ/TON, AG .99 - 2.58 OZ/TON.
Materials
Ore: Sphalerite
Ore: Tetrahedrite
Ore: Galena
Ore: Chalcopyrite
Ore: Pyrite
Gangue: Quartz
Gangue: Sericite
Gangue: Calcite
Gangue: Barite
Comments
Comment (Production): NO PRODUCTION REPORTED
Comment (Deposit): 6 OVERLAPPING, EN ECHELON MINERALIZED ZONES, STRUNG OUT IN NW DIRECTION, OVER LENGTH OF 1000 FT. ONLY ONE (ZONE A) THE MOST WESTERLY, IS MOST PROMISING OF BEARING ORE OF ECONOMIC GRADE AND QUANITY.
Comment (Workings): 50 SHALLOW PITS, TRENCHES AND SHAFTS, ADIT CONSISTS OF 750 FT. OF HORIZONTAL WORKINGS, 2 WINZES; ONE 40 FT., THE OTHER FILLED. ONE 25 FT. HIGH STOPE. 7 DRILL HOLES BY BUREAU OF MINES TOTALLING 2,800 FT.
Comment (Geology): GEOL.DESC: ORE BODIES ARE ELONGATED PARALLEL TO SCHISTOSITY OF ENCLOSING SCHIST. ZONE A IS LOCATED IN SHEARED FELSITE BRECCIA OR TUFF NEAR CONTACT WITH MASSIVE FELSITE VOLCANIC ROCK. META VOLCANICS ARE CUT BY GREENSTONE DIKES.
Comment (Location): UTM ACC; LATITUDE-LONGITUDE VALUES CALCULATED FROM TOWNSHIP, RANGE, SECTION.
References
Reference (Deposit): ERIC, J. H., AND COX, M. W., 1948 , ZINC DEPOSITS OF THE AMERICAN EAGLE - BLUE MOON AREA, MARIPOSA COUNTY, CALIFORNIA; COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 142 - 144 .
Reference (Deposit): BOWEN, O. E. AND CLIFFTON, G. H., 1957 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY, CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 1 & 2 , P. 199 - 200 .
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.
