Sierra Grande Claim

The Sierra Grande Claim is a gold, silver, and lead mine located in Skagit county, Washington at an elevation of 7,799 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: Sierra Grande Claim  

State:  Washington

County:  Skagit

Elevation: 7,799 Feet (2,377 Meters)

Commodity: Gold, Silver, Lead

Lat, Long: 48.5025, -121.04806

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 Sierra Grande Claim

Sierra Grande Claim MRDS details

Site Name

Primary: Sierra Grande Claim


Commodity

Primary: Gold
Primary: Silver
Primary: Lead


Location

State: Washington
County: Skagit
District: Cascade District


Land Status

Land ownership: National Park
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 North Cascades National Park


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Grant, Ferguson, Getchell And Co.
Years: 1892 -


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
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

Type: R
Description: Tight Folding Along North-Northwest Trending Axes


Alterations

Not available


Rocks

Name: Gneiss
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cretaceous

Name: Gneiss
Role: Host
Age Type: Host Rock
Age Young: Late Cretaceous


Analytical Data

Not available


Materials

Ore: Pyrite
Ore: Galena
Gangue: Quartz


Comments

Comment (Workings): WORKINGS UNKNOWN.

Comment (Location): UNSURVEYED. EXTENSION OF HARTFORD CLAIM (M700370).

Comment (Deposit): PRESUMABLY SIMILAR TO BOSTON (M700366) AND HARTFORD (M700370) CLAIMS.

Comment (Geology): DEPENDING ON EXACT LOCATION OF PROPERTY, HOST ROCKS MAY BE CASCADE PASS DIKE


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. 232.

Reference (Deposit): TABOR, R.W., HARGERUD, R.A., BOOTH, D.B., AND BROWN, E.B., 199X, PRELIMINARY GEOLOGIC MAP OF THE MOUNT BAKER 30 X 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN -FILE REPORT 9X-XXX, SCALE 1:100,000 (IN PREPARATION IN 1993).


Washington Gold

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