Montana

The Montana is a copper and gold mine located in Okanogan county, Washington.

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: Montana

Commodity

Primary: Copper
Primary: Gold

Location

State: Washington
County: Okanogan
District: Mazama

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
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

Not available

Structure

Type: R
Description: The Fawn Peak Stock Was Probably The Intrusive Rock Core Of An Island Arc (Riedell, 1979).

Alterations

Not available

Rocks

Name: Diorite
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous

Analytical Data

Not available

Materials

Ore: Chalcopyrite
Gangue: Quartz
Gangue: Pyrite
Gangue: Calcite
Gangue: Pyrrhotite

Comments

Comment (Production): PRODUCED AN UNKNOWN AMOUNT OF ORE IN 1915 (HUNTTING, 1956, P. 68).

Comment (Geology): THE MONTANA DEPOSIT IS IN THE CRETACEOUS FAWN PEAK STOCK. IT IS AN ELONGATE, NORTHWEST-TRENDING INTRUSION ALONG THE NORTHEAST SIDE OF THE METHOW RIVER VALLEY; IT IS SITUATED ALONG THE AXIS OF THE GOAT PEAK SYNCLINE (STOFFEL AND MCGRODER, 1990).

References

Reference (Deposit): BARKSDALE, J.D., 1975, GEOLOGY OF THE METHOW VALLEY, OKANOGAN COUNTY, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOUCES BULLETIN 68, 72 P., 1 PL.

Reference (Deposit): DERKEY, R.E.; JOSEPH, N.L.; LASMANIS, R., 1990, METAL MINES OF WASHINGTON-PRELIMINARY REPORT: STATE OF WASHINGTON, DEPARTMENT OF NATURAL RESOURCES, DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, 577 P.

Reference (Deposit): STOFFEL, K.L., MCGRODER, M.F., COMPILERS, 1990, GEOLOGIC MAP OF THE ROBINSON MOUNTAIN 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-5, 39 P., 1 PL.

Reference (Deposit): HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.

Reference (Deposit): PURDY, C.P., JR., 1952, DIRECTORY OF WASHINGTON MINING OPERATIONS, 1952: WASHINGTON DIVISION OF MINES AND GEOLOGY INFORMATION CIRCULAR 20, 75 P.

Reference (Deposit): RIEDELL, K.B., 1979, GEOLOGY AND PORPHYRY COPPER MINERALIZATION OF THE FAWN PEAK INTRUSIVE COMPLEX, METHOW VALLEY, WASHINGTON: UNIVERSITY OF WASHINGTON MASTER OF SCIENCE THESIS, 52 P., 4 PL.

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.