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

Name: Gray Mare Prospect

State:  Washington

County:  Snohomish

Elevation: 2,201 Feet (671 Meters)

Commodity: Silver, Zinc, Gold, Copper

Lat, Long: 48.23028, -121.66861

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 Gray Mare Prospect

Gray Mare Prospect MRDS details

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.


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