Eureka

The Eureka is a copper mine located in Snohomish county, Washington at an elevation of 3,701 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: Eureka

Commodity

Primary: Copper
Secondary: Antimony
Secondary: Gold
Secondary: Silver
Secondary: Lead

Location

State: Washington
County: Snohomish

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 Mount Baker-Snoqualmie National Forest

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
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: Polymetallic veins

Orebody

Form: VEIN

Structure

Not available

Alterations

Not available

Rocks

Name: Volcanic Rock (Aphanitic)
Role: Host
Age Type: Host Rock Unit
Age Young: Oligocene

Name: Volcanic Rock (Aphanitic)
Role: Host
Age Type: Host Rock
Age Young: Oligocene

Analytical Data

Analytical Data: $1/TON AU
Analytical Data: 4-36 OZ/TON AG

Materials

Ore: Chalcopyrite
Ore: Tetrahedrite
Ore: Galena

Comments

Comment (Deposit): LAT. & LONG. ARE GENERAL ; INFO.SRC : 1 PUB LIT

Comment (Deposit): 2 VEINS

Comment (Workings): 7 ADITS

References

Reference (Deposit): PURDY, C.P., JR., 1951, ANTIMONY OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 39, P. 168.

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. 83.

Reference (Deposit): TABOR, R.W., BOOTH, D.B., VANCE, J.A., FORD, A.B., AND ORT, M.H., 1988, PRELIMINARY GEOLOGIC MAP OF THE SAUK RIVER 30 BY 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 88-692, SCALE 1:100,000.

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.