Iowa Claims

The Iowa Claims is a copper and silver mine located in Snohomish county, Washington at an elevation of 2,723 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: Iowa Claims
Secondary: Mint

Commodity

Primary: Copper
Primary: Silver
Secondary: Tungsten
Secondary: Zinc
Secondary: Lead
Secondary: Gold
Tertiary: Molybdenum

Location

State: Washington
County: Snohomish
District: Sultan 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 Snoqualmie National Forest

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: Sultan Basin Mining Co.

Owner Name: Robert Curtiss
Home Office: Monroe, Wa.
Years: 1956 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1915
Discovery Year: 1901
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
Physiographic Detail: Cascade Mountains

Mineral Deposit Model

Model Name: Polymetallic veins

Orebody

Form: VEIN

Structure

Type: L
Description: West-Northwest Trending Fractures And Veins

Alterations

Not available

Rocks

Not available

Analytical Data

Analytical Data: 12.7% CU, 0.05 OZ/TON AU, 0.9 OZ/TON AG, 0.43% WO3 IN HIGH-GRADE SAMPLE.

Materials

Ore: Pyrrhotite
Ore: Pyrite
Ore: Chalcopyrite
Ore: Powellite
Ore: Molybdenite
Ore: Sphalerite
Ore: Malachite
Ore: Realgar
Ore: Scheelite
Ore: Bornite
Ore: Orpiment
Gangue: Calcite
Gangue: Quartz
Gangue: Chlorite

Comments

Comment (Workings): 3 ADITS; ORE MINED FROM UPPER 2. NARROW SUBMARGINAL VEINS IN LOWEST ADIT.

Comment (Geology): REGION IS COMPOSED OF ACCRETED TERRANES OVERPRINTED WITH CASCADES MAGMATISM

Comment (Production): 104 TONS AVERAGE 20% CU, 0.223 OZ/TON AU, 3.23 OZ. TON AG; 43 TONS AVERAGE 14.68% CU, 0.06 OZ/TON AU AND 3.10 OZ/TON AG.

Comment (Development): VEINS ARE NARROW AND ORE IS SPOTTY.

Comment (Deposit): MINERALIZED FRACTURE ZONES

Comment (Deposit): PART OF SULTAN BASIN MINING CO. PROPERTY. SEE ALSO MRDS RECORDS M025677, M025753. MRDS RECORDS D001417, D000687, M025754 HAVE BEEN MERGED WITH THIS RECORD AND DELETED

References

Reference (Deposit): 1943 GEOLMAP WASHINGTON DIV. OF MINES AND GEOLOGY REAL MAP

Reference (Production): WASH. DIV. MINES AND GEOL. BULL. 36

Reference (Deposit): CULVER, H.E., AND BROUGHTON, W.A., 1945, TUNGSTEN RESOURCES OF WASHINGTON: WASHINGTON DIVISION OF GEOLOGY BULLETIN 34, P. 56.

Reference (Deposit): LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE UNITED STATES: U.S. GEOLOGICAL SURVEY MINERAL INVESTIGATIONS RESOURCE MAP MR-25, SCALE 1:3,168,000.

Reference (Deposit): KING, R.U., U.S. GEOLOGICAL SURVEY, UNPUB. DATA.

Reference (Deposit): LEMMON, D.M., U.S. GEOLOGICAL SURVEY, UNPUB DATA.

Reference (Deposit): DERKEY, R.E., JOSEPH, N.L., AND LASMANIS, RAYMOND, 1990, METAL MINES OF WASHINGTON - PRELIMINARY REPORT: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, P. 352.

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. 86.

Reference (Deposit): CARITHERS, WARD, AND GUARD, A.K., 1945, GEOLOGY AND ORE DEPOSITS OF THE SULTAN BASIN, SNOHOMISH COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 36, P. 62-65.

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.