Mid Range

The Mid Range is a silver, copper, gold, and zinc 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

Name: Mid Range

State:  Washington

County:  Okanogan

Elevation:

Commodity: Silver, Copper, Gold, Zinc

Lat, Long: 48.48528, -120.59694

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.


Satelite image of the Mid Range

Mid Range MRDS details

Site Name

Primary: Mid Range


Commodity

Primary: Silver
Primary: Copper
Primary: Gold
Primary: Zinc


Location

State: Washington
County: Okanogan


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
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 Golden Horn Batholith Was Intruded Into The Hozameen Fault, The Major Fault Bounding The Southwestern Side Of The Methow Basin. Radiometric Dating Suggests That Magmatic Crystallization Occured At Approximately 47 M.Y. K-Ar Biotite, Fission-Track Allanite, Rb-Sr Isochron Ages That Fall Between 38 And 42 M.Y. Probably Represent The Age Of Postcrystallization Hydrothermal Alteration (Stoffel And Mcgroder, 1990).


Alterations

Not available


Rocks

Name: Granite
Role: Host
Age Type: Host Rock
Age Young: Eocene


Analytical Data

Not available


Materials

Ore: Chalcopyrite
Ore: Sphalerite
Gangue: Quartz
Gangue: Pyrite
Gangue: Pyrrhotite


Comments

Comment (Location): AT THE HEAD OF NORTH CREEK, ELEVATION 6000-7760 FEET, ABOUT 5 MILES BY TRAIL NORTH OF GILBERT, AT THE TERMINOUS OF THE TWISP RIVER ROAD.

Comment (Production): TEN TONS OF ORE IN 1939 AND 22 TONS OF ORE IN 1940 WERE SHIPPED TO THE TACOMA SMELTER (HUNTTING, 1956, P. 144).

Comment (Geology): THE VEINS ARE IN GRANITE OF THE GOLDEN HORN BATHOLITH OF EOCENE AGE (STOFFEL AND MCGRODER, 1990).


References

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): 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): WASHINGTON DIVISION OF MINES AND MINING, 1941, DIRECTORY OF WASHINGTON MINING PROPERTIES: WASHINGTON DIVISION OF MINES AND MINING INFORMATION CIRCULAR 7, 74 P.

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.


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