Gray Mare Prospect

The Gray Mare Prospect is a silver, zinc, gold, and copper mine located in Snohomish county, Washington at an elevation of 2,201 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: Gray Mare Prospect
Secondary: Old Gray Mare
Secondary: Whitehorse

Commodity

Primary: Silver
Primary: Zinc
Primary: Gold
Primary: Copper
Tertiary: Lead
Tertiary: Antimony

Location

State: Washington
County: Snohomish

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 Boulder River Wilderness In Mount Baker 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: MINERALIZED BRECCIA

Structure

Not available

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: ASSAYS SHOWED 15-245 OZ/TON AG, 20-70% PB, 1-3% ZN, 0.3-9.8% SB, 0.01 OZ/TON AU, 0.34% AS.

Materials

Ore: Sphalerite
Ore: Galena
Ore: Chalcopyrite

Comments

Comment (Deposit): MRDS RECORD D001711 HAS BEEN MERGED WITH THIS RECORD AND DELETED

Comment (Location): POSSIBLY LOCATED IN N/4 SEC. 30

Comment (Commodity): THERE MAY BE CONSIDERABLE LOW-GRADE ORE

Comment (Deposit): COLLAPSE BRECCIA

Comment (Workings): 50 FT ADIT, ANOTHER SHORT ADIT, SOME SURFACE WORKINGS

Comment (Geology): UNCERTAIN WHETHER DIORITE IS PART OF SQUIRE CREEK STOCK AND RELATED ROCKS

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. 319, 375.

Reference (Deposit): PURDY, C.P., JR., 1951, ANTIMONY OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 39, P. 169.

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.