The Krohn and Ward is a mine located in Madera 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
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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.
Krohn and Ward MRDS details
Site Name
Primary: Krohn and Ward
Commodity
Tertiary: Cobalt
Tertiary: Copper
Tertiary: Nickel
Location
State: California
County: Madera
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: E. W. Krohn, Of Coarsegold, Calif. Has 80 Acre Agricultural Patent, Acquired Before 1915
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Trough
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Schist
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic
Analytical Data
Not available
Materials
Ore: Pyrrhotite
Gangue: Malachite
Comments
Comment (Reserve-Resource): RESERVES UNKNOWN.
Comment (Production): NO PRODUCTION REPORTED
Comment (Geology): GEOL.DESC: AREA IS UNDERLAIN BY METAMORPHOSED JURASSIC SEDIMENTARY ROCK, WHICH CONSIST PRINCIPALLY OF FINE-GRAINED BIOTITE-QUARTZ SCHIST AND SMALL LENSES AND LAYERS OF PYROPHYLLITE SCHIST. FOLIATION IN METAMORPHIC ROCKS STRIKES N.W. AND DIPS STEEPLY E. MINERALIZATION TENDS TO LOCALIZE IN PYROPHYLLITE SCHIST, WHICH AT SHAFT, FORMS LAYER LESS THAN SEVERAL TENS OF FT. IN WIDTH. PYRRHOTITE REPORTED IN SHAFT. ARSENOPYRITE IS PRINCIPAL SULFIDE, AND A FEW OXIDIZED MINERALS, INCLUDING MALACHITE AND AZURITE, WERE FOUND.
Comment (Deposit): GOOD COPPER ORE AND INDICATIONS OF A DEPOSIT WAS OBSERVED IN 1908
References
Reference (Deposit): AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL. 50 ; CALIF. MIN. BUR., P. 276
Reference (Deposit): ERIC, J.H., 1948 ; CALIF. D.O.M. BULL. 144 , P. 262
Reference (Deposit): CHESTERMAN, C.W., 1976 , WRITTEN COMMUNICATION.
Reference (Reserve-Resource): UNPUBLISHED CO REPORT
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.
