The Copsey Claims is a chromium mine located in Lake 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.
Copsey Claims MRDS details
Site Name
Primary: Copsey Claims
Secondary: Manzanita
Secondary: Mint
Secondary: Uncle Josh Claims
Commodity
Primary: Chromium
Location
State: California
County: Lake
District: Western Group Of Lake County
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Copsey, Arthur
Home Office: Middletown, Ca.
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1917
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges
Physiographic Detail: Mayacmas Mountains
Mineral Deposit Model
Not available
Orebody
Form: LENSE, POD OTHER STRINGERS
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Chromite
Comments
Comment (Location): WORKINGS ARE 1/4 TO 1 1/4 FROM MAIN ROAD AT A POINT 7 MILES NORTH OF MIDDLETOWN AND 23 MILES NORTH OF CALISTOGA.
Comment (Production): PRODUCTION FROM MANZANTIA CLAIM
Comment (Workings): WORKINGS CONSISTED OF SEVERAL TRENCHES AND TUNNELS ON THE MANZANITA AND UNCLE JOSH CLAIMS. LITTLE WORK WAS DONE ON THE MINT CLAIM.
Comment (Geology): SERPENTINE BLET EXTENDS N65W FROM NORTHERN HALF OF SEC. 4, T.11N, R.7W INTO SW QUARTER OF T.12N, R.7W.
Comment (Deposit): ARTHUR COPSEY LEASED SHARED TO W.P. MOORE AND JOSHUA SPIERS. BLACK CHROMITE SAND VERY ABUNDANT ON ALL THREE CLAIMS, ESPECIALLY IN WATER COURSES. STRINGERS VARY FROM 2 INCHES TO 1 FOOT IN WIDTH.
References
Reference (Deposit): LOGAN, C.A., 1918, CHROMIUM IN BRADLEY, W.W., AND OTHERS, MANGANESE AND CHROMIUM IN CALIF.: CALIF. STATE MINING BUREAU BULLETIN NO. 76, P. 148,149,219.
Reference (Deposit): DOW, D.H. AND THAYER, T.P., 1946, GEOLOGICAL INVESTIGATIONS OF CHROMITE IN CALIF.: CALIF. DIVISION OF MINES BULLETIN 134, PART 2, CHAPT. 1, P 11,12,32.
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.
