The Horn is a copper mine located in San Bernardino 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.
Horn MRDS details
Site Name
Primary: Horn
Commodity
Primary: Copper
Secondary: Gold
Location
State: California
County: San Bernardino
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Year: 1952
Material type: ORE
Description: Ap_Grade: ^4.84 - 6.71 % Cu, Small Gold
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: L
Description: Fault Zones
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Cuprite
Ore: Chalcopyrite
Ore: Chalcocite
Ore: Chrysocolla
Comments
Comment (Deposit): ORE MINERALS FORM SMALL REPLACEMENT BODIES ALONG FAULT ZONES IN METAMORPHIC ROCKS. TWO PARALLEL VEINS, 200 FT. APART CROP OUT ON SE SLOPE OF A NE TRENDING RIDGE. ORE BODY 2 - 27 FT. THICK, THICKEST AT INTERSECTION OF VEIN WITH CROSS FRACTURE.
Comment (Workings): VEIN TO NE; EXPLORED BY SURFACE CUTS AND TWO SHORT ADITS 150 FT. APART, 70 FT. DIFFERENCE IN ELEVATION. LOWER ADIT 90 FT. LONG, UPPER ADIT DRIVEN S 70 W FOR 50 FT. VEIN TO SW; EXPLORED BY DRIFT ADIT 50 FT. LONG. PREVIOUS WORKINGS TOTALED 750 FT.
Comment (Geology): GEOL.DESC: ROCKS IN AREA ARE ARCHEAN METAMORPHICS ONE DEPOSIT IS ASSOCIATED WITH A QUARTZ-SPINEL ROCK WHICH GRADES INTO A QUARTZ - SPINEL - SERICITE. SCHIST. NORTHERN AREA, BASALT LOCALLY OVERLIES THE METAMORPHIC ROCKS.
Comment (Commodity): HIGH GRADE COPPER ORE
References
Reference (Deposit): AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA, BULL. 50 ; CALIF. MIN. BUR., P. 337.
Reference (Deposit): WRIGHT, L. A., ETAL, 1953 , MINES AND MINERAL DEPOSITS, SAN BERNARDINO COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 49 , NOS. 1 & 2 ; DIV. OF MINES, P. 64 .
Reference (Production): WRIGHT, L. A., ETAL, 1953 , P. 64 (SEE REF.)
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.
