Roosevelt

The Roosevelt is a copper, gold, silver, iron, and tungsten mine located in Okanogan county, Washington at an elevation of 4,475 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: Roosevelt  

State:  Washington

County:  Okanogan

Elevation: 4,475 Feet (1,364 Meters)

Commodity: Copper, Gold, Silver, Iron, Tungsten

Lat, Long: 48.94389, -118.97472

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Satelite image of the Roosevelt

Roosevelt MRDS details

Site Name

Primary: Roosevelt
Secondary: Grant
Secondary: Maclean
Secondary: Teddy Roosevelt;


Commodity

Primary: Copper
Primary: Gold
Primary: Silver
Primary: Iron
Primary: Tungsten


Location

State: Washington
County: Okanogan


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Contact Metamorphic
Operation Type: Unknown
Years of Production:
Organization:
Significant: N


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Type: R
Description: The Spectacle Formation Was Deposited Along And Active Continental Margin.


Alterations

Not available


Rocks

Name: Hornfels
Role: Host
Age Type: Host Rock
Age Young: Late Permian

Name: Hornfels
Role: Host
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Hornfels
Role: Host
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Hornfels
Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian


Analytical Data

Not available


Materials

Ore: Pyrite
Ore: Magnetite
Ore: Chalcopyrite
Ore: Scheelite
Gangue: Epidote
Gangue: Garnet


Comments

Comment (Deposit): THE MAIN DEVELOPMENT AT THE ROOSEVELT MINE CONSISTED OF AN 855-FT LOWERE ADIT WITH ABOUT 750 FEET OF DRIFTS AND CROSSCUTS. ABOUT 200 FEET HIGHER IN ELEVATION ARE SEVERAL OPEN CUTS AND CAVED ADITS. THE UPPER ADITS APPEAR TO BE THE EARLIER WORKINGS. THE LOWER ADIT WAS DRIVEN IN AN ATTEMPT TO INTERSECT THE DOWNWARD EXTENSION OF THE ORE BODIES. HOWEVER, THESE BODIES APPARENTLY DID NOT EXTEND TO THE DEPTH OF THE LOWER ADIT, ALTHOUGH ISOLATED OCCURRENCES OF MAGNETITE WERE FOUND (MOEN, 1980, P. 54). BROUGHTON (1943, P. 20-21) ESTIMATED ONLY ABOUT 2000 TONS OF MAGNETITE REMAINS IN THE FLOOR OF THE LARGE STOPE OF THE LOWER ADIT. HE ALSO REPORTED AN AREA OF MODERATELY HIGH DIP NEEDLE READINGS S60E, 250 FEET FROM THE STOPE. ; INFO.SRC : 1 PUB LIT

Comment (Production): TWELVE CARLOADS OF HAND-SORTED ORE WERE SHIPPED TO SMELTERS IN 1911; ORE RAN 7-9% CU, 0.10-0.20 OZ/TON AU, AND 3.75-7.5 OZ/TON AG (HUNTTING, 1956, P. 199). IN 1919-20 A TOTAL OF 2000 TONS OF IRON ORE WAS SHIPPED (MOEN, 1980, P. 54).

Comment (Geology): CONTACT METAMORPHIC DEPOSIT AT THE CONTACT OF PERMIAN METASEDIMENTARY ROCKS AND THE JURASSIC-CRETACEOUS, BIOTITE-HORNBLENDE BUCKHORN MOUNTAIN PLUTON (MOEN, 1980, P. 54; STOFFEL, 1990).


References

Reference (Deposit): BROUGHTON, W.A., 1943, THE BUCKHORN IRON DEPOSITS OF OKANOGAN COUNTY, WASHINGTON--RESULTS OF A MAGNETIC SURVEY: WASHINGTON DIVISION OF GEOLOGY REPORT OF INVESTIGATIONS 8, 21 P., 1 PL.

Reference (Deposit): DERKEY, R.E.; JOSEPH, N.L.; LASMANIS, R., 1990, METAL MINES OF WASHINGTON-PRELIMINARY REPORT: STATE OF WASHINGTON, DEPARTMENT OF NATURAL RESOURCES, DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-18, 577 P.

Reference (Deposit): HUNTTING, M. T., 1956, INVENTORY OF WASHINGTON MINERALS-PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, V. 1, 428 P.; V. 2, 67 P.

Reference (Deposit): MOEN, W.S., 1980, MYERS CREEK AND WAUCONDA MINING DISTRICTS OF NORTHEASTERN OKANOGAN COUNTY, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES BULLETIN 73, 96 P., 6 PL.

Reference (Deposit): STOFFEL, K.L., COMPILER, 1990, GEOLOGIC MAP OF THE REPUBLIC 1:100,000 QUADRANGLE, WASHINGTON: WASHINGTON DIVISION OF GEOLOGY AND EARTH RESOURCES OPEN-FILE REPORT 90-10, 62 P., 1 PL.

Reference (Deposit): UMPLEBY, J.B., 1911, PART I.-- GEOLOGY AND ORE DEPOSITS OF THE MYERS CREEK MINING DISTRICT; PART II. -- GEOLOGY AND ORE DEPOSITS OF THE OROVILLE-NIGHTHAWK MINING DISTRICT: WASHINGTON GEOLOGICAL SURVEY BULLETIN 5, 111 P.


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