Stephens

The Stephens is a copper, gold, and silver mine located in Skagit county, Washington at an elevation of 400 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

Name: Stephens  

State:  Washington

County:  Skagit

Elevation: 400 Feet (122 Meters)

Commodity: Copper, Gold, Silver

Lat, Long: 48.49528, -122.64667

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 Stephens

Stephens MRDS details

Site Name

Primary: Stephens
Secondary: Fidalgo


Commodity

Primary: Copper
Primary: Gold
Primary: Silver


Location

State: Washington
County: Skagit


Land Status

Land ownership: Private
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.


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Brown Brothers Timber Co. And James Stephens, Seattle, Wa.
Years: 1943 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Puget Trough
Physiographic Detail: Pacific Mountains


Mineral Deposit Model

Model Name: Polymetallic veins


Orebody

Form: VEIN


Structure

Type: L
Description: Shear Zone


Alterations

Not available


Rocks

Name: Diorite
Role: Host
Age Type: Associated Rock Unit
Age Young: Late Jurassic


Analytical Data

Analytical Data: ORE SHIPMENT RAN 2% CU WITH A LITTLE AU AND AG


Materials

Ore: Chalcopyrite
Ore: Pyrite
Gangue: Serpentine
Gangue: Quartz
Gangue: Chlorite


Comments

Comment (Location): BY CRANBERRY LAKE.

Comment (Production): ONE SHIPMENT TO TACOMA SMELTER OF UNKNOWN SIZE ON UNKNOWN DATE.

Comment (Deposit): SHEAR ZONE IN GRANODIORITE IS SERPENTINIZED AND WEAKLY MINERALIZED

Comment (Workings): 5 SHALLOW SHAFTS, OPEN CUT.

Comment (Geology): FIDALGO COMPLEX IS AN ACCRETED OPHIOLITE TERRANE. GRANODIORITE MAY BE PART OF COMPLEX OR PART OF A LATER MAGMATIC EVENT. RELATION TO ORE IS NOT KNOWN


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, P. 76.

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. 334.


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