Copper Mining Co.

The Copper Mining Co. is a copper mine located in Yakima county, Washington at an elevation of 5,000 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

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.

Site Name

Primary: Copper Mining Co.
Secondary: New Find
Secondary: Bird

Commodity

Primary: Copper
Secondary: Tungsten
Tertiary: Silver
Tertiary: Gold
Tertiary: Molybdenum

Location

State: Washington
County: Yakima
District: Bumping Lake District

Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: In Snoqualmie National Forest Cherry Stem Into William O. Douglas Wilderness

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Owner Name: Copper Mining Co. (-
Home Office: Yakima, Wa.

Production

Year: 1938
Material type: CONC
Description: Ap_Grade: ^19.6% Cu, 100 Oz/Ton Ag, 1 Oz/Ton Au

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Northern Cascade Mountains

Mineral Deposit Model

Model Name: Porphyry Cu-Mo

Orebody

Form: BRECCIA PIPES

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Potassic, Phyllic, Propylitic

Rocks

Name: Diorite
Role: Host
Age Type: Host Rock Unit
Age Young: Miocene

Name: Diorite
Role: Host
Age Type: Host Rock
Age Young: Miocene

Analytical Data

Analytical Data: WO3 ESTIMATED AT ABOUT 0.25%. LOCAL POCKETS OF SEVERAL HUNDRED TONS CONTAIN 0.75-1%. ASSAYS RAN TR AU, 0.6-2 OZ/TON AG, 1.15-3.35% CU, TR-11.5% WO3, 0.13% MOS2

Materials

Ore: Scheelite
Ore: Molybdenite
Ore: Pyrite
Ore: Malachite
Ore: Chalcopyrite
Ore: Bornite
Gangue: Quartz
Gangue: Sericite
Gangue: Biotite
Gangue: Tourmaline

Comments

Comment (Location): UNSURVEYED. EAST SIDE OF MINERS RIDGE NEAR SUMMIT. COPPER MINING CO. CLAIMS ARE ALSO IN SECS. 12, 13, 14, T. 15 N., R. 11 E. AND SECS. 7, 8, 17, 20, T. 15 N., R. 12 E. LAT/LONG GIVEN ARE FOR NEW FIND

Comment (Production): OUTPUT SMALL. SOME COPPER CONCENTRATE AND A LITTLE SCHEELITE CONCENTRATE SHIPPED IN 1933.

Comment (Deposit): SEE ALSO MRDS RECORD MP00249. MRDS RECORDS W017917, D000706 HAVE BEEN MERGED WITH THIS RECORD AND DELETED

Comment (Deposit): SERIES OF PARALLEL AND DIVERGING VEINLETS ARE PRESENT IN HYDROTHERMALLY ALTERED SHEAR ZONE 7-8 FT WIDE AND TRACEABLE FOR 2,000 FT

Comment (Workings): SEVERAL ADITS, SHALLOW SHAFTS, NUMEROUS OPEN CUTS

References

Reference (Deposit): DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 571-572.

Reference (Deposit): HOLLISTER, V.F., 1979, PORPHYRY COPPER-TYPE DEPOSITS OF THE CASCADE VOLCANIC ARC, WASHINGTON: MINERALS SCIENCE AND ENGINEERING, V. 11, P. 34.

Reference (Deposit): LEMMON, D.M., UNPUB. DATA.

Reference (Deposit): LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE UNITED STATES, U.S. GEOLOGICAL SURVEY MINERAL INVESTIGATIONS RESOURCE MAP, MR-25, SCALE 1:3,168,000.

Reference (Deposit): CULVER, H.E., AND BROUGHTON, W.A., 1945, TUNGSTEN RESOURCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY BULLETIN 34, P. 80-84.

Reference (Production): DERKEY AND OTHERS, 1990

Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 106-107, 350.

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.