Seattle-Cascade

The Seattle-Cascade is a copper, silver, lead, and zinc mine located in King county, Washington at an elevation of 3,776 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: Seattle-Cascade

State:  Washington

County:  King

Elevation: 3,776 Feet (1,151 Meters)

Commodity: Copper, Silver, Lead, Zinc

Lat, Long: 47.66833, -121.41833

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 Seattle-Cascade

Seattle-Cascade MRDS details

Site Name

Primary: Seattle-Cascade
Secondary: Tripple S
Secondary: Silver Dollar
Secondary: Copper Plate
Secondary: Silver Dollar and Copper Plate


Commodity

Primary: Copper
Primary: Silver
Primary: Lead
Primary: Zinc
Secondary: Gold
Tertiary: Arsenic


Location

State: Washington
County: King
District: Miller River District


Land Status

Land ownership: National Wilderness
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 Alpine Lakes Wilderness In Mount Baker-Snoqualmie National Forest


Holdings

Not available


Workings

Type: Underground


Ownership

Owner Name: Seattle-Cascade Mining Co.
Years: 1909 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Year First Production: 1901
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: Polymetallic veins


Orebody

Form: VEIN


Structure

Not available


Alterations

Not available


Rocks

Not available


Analytical Data

Analytical Data: AS MUCH AS 30 OZ/TON AG. AVERAGE OF 4 OLD ASSAYS $15.27/TON AG, $11.31/TON PB, $7.08/TON CU, $2/TON AU.


Materials

Ore: Pyrite
Ore: Galena
Ore: Chalcopyrite
Gangue: Quartz


Comments

Comment (Production): A FEW CARLOADS OF PB ORE PRIOR TO 1901, SMALL PRODUCTION IN 1940

Comment (Deposit): MINERALIZED SHEAR ZONES TO 1.5 FT WIDE CONTAINING BANDS OF ORE

Comment (Location): WEST OF MILLER RIVER

Comment (Workings): 3 ADITS, RAISE


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. 297.

Reference (Production): HUNTTING, 1956

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. 121.


Washington Gold

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