Thunder Mountain Claims

The Thunder Mountain Claims is a lead, silver, gold, copper, and zinc mine located in Skagit county, Washington at an elevation of 5,400 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: Thunder Mountain Claims

Commodity

Primary: Lead
Primary: Silver
Primary: Gold
Primary: Copper
Primary: Zinc

Location

State: Washington
County: Skagit
District: Thunder Creek 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: Thunder Mountain Mines, Inc., Lacy, Wa.
Years: 1965 -

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 IN SHEAR ZONES

Structure

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

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: SAMPLES FROM SHEAR ZONES ASSAYED 6.82-29.34 OZ/TON AG, 0.3-4% CU, 0.4-18.7% PB, 0.4-14% ZN. SELECT HIGH-GRADE SAMPLES OF GALENA ASSAYED 151 OZ/TON AG, 55.5% PB.

Materials

Ore: Chalcopyrite
Ore: Sphalerite
Ore: Gold
Ore: Pyrite

Comments

Comment (Location): UNSURVEYED

Comment (Development): EXPLORATION ON VIOLA CLAIM (SEC 15) IN 1965-1966, 1967-1968

Comment (Deposit): 1-6 FT THICK MINERALIZED SHEAR ZONES IN GNEISS AND DIORITE.

Comment (Workings): SEVERAL SHORT ADITS.

Comment (Geology): GEOLOGY PROJECTED FROM TABOR AND OTHERS. PROPERTY PROBABLY LIES NEAR CONTACT OF CASCADE PASS DIKE AND SKAGIT GNEISS COMPLEX

Comment (Deposit): SMALL TEST SHIPMENT UNKNOWN DATE. ; INFO.SRC : 1 PUB LIT

References

Reference (Deposit): MOEN, W.S., 1969, DIRECTORY OF WASHINGTON MINING OPERATIONS 1967-1968: WASHINGTON DIVISION OF MINES AND GEOLOGY INFORMATION CIRCULAR 44, P. 20. (SEE ALSO IC 43, P. 19)

Reference (Deposit): MOEN, W.S., 1976, SILVER OCCURRENCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 69, P. 160-161.

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

"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.