Uncle Sam Prospect

The Uncle Sam Prospect is a silver, gold, and copper mine located in Snohomish county, Washington at an elevation of 2,999 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: Uncle Sam Prospect

State:  Washington

County:  Snohomish

Elevation: 2,999 Feet (914 Meters)

Commodity: Silver, Gold, Copper

Lat, Long: 47.81194, -121.48722

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 Uncle Sam Prospect

Uncle Sam Prospect MRDS details

Site Name

Primary: Uncle Sam Prospect


Commodity

Primary: Silver
Primary: Gold
Primary: Copper


Location

State: Washington
County: Snohomish
District: Index District


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

Type: Underground


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: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Holocene

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Holocene


Analytical Data

Analytical Data: PICKED SAMPLES YIELDED 3-4.5% CU WITH A SMALL AMOUNT OF AU AND AG


Materials

Ore: Hematite
Ore: Chalcopyrite
Ore: Pyrite
Ore: Bornite
Gangue: Garnet
Gangue: Hornblende


Comments

Comment (Geology): HOST ROCK IS PRESUMABLY ROOF PENDANT IN BATHOLITH

Comment (Location): ON SOUTH SLOPE OF DIVIDE BETWEEN LEWIS AND BARCLAY CREEKS

Comment (Deposit): THERE MAY BE DISSEMINATED COPPER SULFIDE MINERALS NEAR THIS PROSPECT. MINERALIZED SHEAR ZONE 10-12 FT WIDE

Comment (Workings): 3 ADITS


References

Reference (Deposit): TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WHETTEN, J.T., WAITT, R.B., JR., AND ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, SCALE 1:100,000.

Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METLALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, P. 91.

Reference (Deposit): GRANT, A.R., 1976, REPORT OF EVALUATION, MINERAL RESOURCE ANALYSIS STUDY ON UNITED STATES FOREST SERVICE LAND, STATE OF WASHINGTON: PREPARED FOR U.S. FOREST SERVICE - REGION 6, CONTRACT NO. 004724N, P. 39.


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