Granite Falls Prospect

The Granite Falls Prospect is a mercury mine located in Snohomish county, Washington at an elevation of 499 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: Granite Falls Prospect

State:  Washington

County:  Snohomish

Elevation: 499 Feet (152 Meters)

Commodity: Mercury

Lat, Long: 48.04694, -121.92000

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 Granite Falls Prospect

Granite Falls Prospect MRDS details

Site Name

Primary: Granite Falls Prospect


Commodity

Primary: Mercury
Tertiary: Nickel


Location

State: Washington
County: Snohomish


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Washington State Forest Board


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: Pacific Border Province
Physiographic Section: Puget Trough


Mineral Deposit Model

Model Name: Silica-carbonate Hg


Orebody

Form: DISSEMINATED


Structure

Not available


Alterations

Not available


Rocks

Name: Carbonate
Role: Host
Age Type: Host Rock Unit
Age Young: Paleocene

Name: Carbonate
Role: Host
Age Type: Host Rock
Age Young: Paleocene


Analytical Data

Analytical Data: 2 SAMPLES TOTALING 8 FT AVERAGED 0.25% NI


Materials

Ore: Garnierite
Ore: Genthite
Ore: Cinnabar
Gangue: Quartz


Comments

Comment (Commodity): NICKEL PROSPECT

Comment (Workings): 35 FT CROSSCUT

Comment (Deposit): MRDS RECORD M025721 HAS BEEN MERGED WITH THIS RECORD AND DELETED


References

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.

Reference (Deposit): U.S. BUREAU OF MINES, 1965, MERCURY IN WASHINGTON, IN MERCURY POTENTIAL OF THE UNITED STATES: U.S. BUREAU OF MINES INFORMATION CIRCULAR 8252, P. 364.

Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, P. 279.


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