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
Elevation: 4,475 Feet (1,364 Meters)
Commodity: Copper, Gold, Silver, Iron, Tungsten
Lat, Long: 48.94389, -118.97472
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.
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.
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.
