The Copper World Extension is a copper and gold mine located in Okanogan county, Washington at an elevation of 3,940 feet.
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
Elevation: 3,940 Feet (1,201 Meters)
Commodity: Copper, Gold
Lat, Long: 48.85722, -119.59167
Map: View on Google Maps
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.
Copper World Extension MRDS details
Site Name
Primary: Copper World Extension
Secondary: Iron Mask
Secondary: Iron Master?
Commodity
Primary: Copper
Primary: Gold
Secondary: Silver
Tertiary: Tungsten
Tertiary: Zinc
Tertiary: Iron
Location
State: Washington
County: Okanogan
District: Palmer Mtn District
Land Status
Not available
Holdings
Not available
Workings
Type: Unknown
Ownership
Owner Name: Copper World Extension Mining And Smelting Co.
Home Office: Columbus, Oh.
Years: 1907 - 1942
Owner Name: Callahan Mining Co.
Home Office: George Glick, Geologist, P.O. Box G, Osburn, Id. 83849
Years: 1967 - 1968
Production
Year: 1919
Time Period: 1918 To 1919
Material type: ORE CU AU
Description: Cp_Grade: ^3.147 % Cu/Ton, 0.03 Oz Au/Ton, And 0.42 Oz Ag/Ton
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1912
Year Last Production: 1919
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: L
Description: Hanging Wall Part Of Fault
Alterations
Alteration Type: L
Alteration Text: See Comments
Rocks
Name: Diabase
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Triassic
Analytical Data
Analytical Data: 2 1/2 TO 4% CU, 1 OZ AG, $.50 TO $1 AU
Materials
Ore: Malachite
Ore: Sphalerite
Ore: Chalcopyrite
Ore: Magnetite
Ore: Marcasite
Ore: Pyrite
Ore: Pyrrhotite
Ore: Bornite
Gangue: Serpentine
Gangue: Calcite
Gangue: Talc
Comments
Comment (Location): ELEVATION IS APPROXIMATE. AT EAST END OF COPPER WORLD CLAIM (RECORD NO. M056533); EAST SIDE PALMER MTN.
Comment (Commodity): PRODUCTION OF AN UNKNOWN QUANITY PRIOR TO 1911; PRODUCTION IN 1918-1919. THERE COULD BE CONSIDERABLE RESOURCES BETWEEN THE 200 AND 300 FT LEVELS AND EVEN BELOW 300 FT IF THE ORE COULD BE TRACED. TOTAL SIZE OF CLAIMS ABOUT 160 ACRES.
Comment (Development): SHAFT AND DRIFTS; 5000 FT RIBLET AERIAL TRAMWAY, CAPACITY OF 400 TONS/DAY, COMPLETED IN 1919; EXPLORATION IN 1967-1968.
Comment (Geology): NEAR THE ORE THE WALL ROCK IS BADLY METAMORPHOSED BY INTENSE SHEARING ACTION THAT HAS DEVELOPED SERPENTINE AND TALC AND IN PLACES CONVERTED THE ROCK DIRECTLY INTO A SCHIST. THIS ALTERED ANDESITE OFTEN OCCURS AS A HORSE TWO TO FIVE FT THICK SEPARATING TWO OVERLAPPING PARALLEL LENSES OF ORE. ; GEOL.DESC: SERIES OF OVERLAPPING TABULAR LENSES OF SOLID PYRITE AND CHALCOPYRITE
Comment (Deposit): 11 PATENTED CLAIMS: HOMESTAKE, CAYLOR, IRON MASK, THREE LINKS, RAINY DAY, 20TH CENTURY, COLUMBUS, ANACONDA, AND LOTTIE. MINE MAPS AT WASH. DMG.
Comment (Deposit): A FINE-GRAINED MASS OF AN INTERGROWN NATURAL SULPHIDE MATTE, WHICH IS FOUND IN A SERIES OF O ERLAPPING TABULAR MASSES; THE LARGER LENSES MEASURE SEVERAL HUNDRED TONS OF ORE EACH.
Comment (Workings): 300 FT VERTICAL SHAFT WITH LEVELS AT 100 FT INTERVALS. A CROSSCUT AT THE 100 FT LEVEL PICKS UP THE ORE BODY 18 FT FROM THE SHAFT, WHERE AN EXPLORATORY DRIFT IS CARRIED ON FOR 60 FT FURTHER. AT THE 200 FT LEVEL THE ORE WAS PICKED UP 135 FT SW OF THE SHAFT, AND FOLLOWED BY INCLINED RAISES TO THE 100 FT LEVEL. THERE IS ABOUT 700 FT OF DRIFTING AND CROSSCUTTING ON THE 200 FT LEVEL. AT THE 300 FT LEVEL A CROSSCUT WAS RUN 574 FT TO THE SW WITHOUT ENCOUNTERING THE ORE (A QUICK GRAPHIC SOLUTION SUGGESTS THAT THE ORE SHOULD HAVE BEEN ENCOUNTERED BETWEEN 255 AND 300 FT, THE CROSSCUT MUST NOT GO SW OR THE ORE PINCHES OUT BETWEEN THE 200 AND 300 FT LEVELS). PERHAPS WINZING DOWN FROM THE 200 FT LEVEL WOULD BE THE NEXT APPROPRIATE ACTION.
References
Reference (Deposit): WASH. DMG BULL. 37, PART II, P. 64.
Reference (Deposit): WASH. GEOL. SUR. BULL 23, P. 240-243
Reference (Deposit): WASH. DMG BULL 64, P. 84-85, PLATES 1-2
Reference (Production): HUNTTING, 1956
Washington Gold
"Where to Find Gold in Washington" 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 Arizona. Read more: Where to Find Gold in Washington.
