The Elkhorn Group is a manganese mine located in Jefferson county, Washington at an elevation of 3,350 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: 3,350 Feet (1,021 Meters)
Commodity: Manganese
Lat, Long: 47.73944, -123.01056
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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.
Elkhorn Group MRDS details
Site Name
Primary: Elkhorn Group
Secondary: Karnes Group
Commodity
Primary: Manganese
Tertiary: Iron
Location
State: Washington
County: Jefferson
District: Dosewallips River Area
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 Olympic National Forest
Holdings
Not available
Workings
Not available
Ownership
Owner Name: American Manganese Corp.
Home Office: Seattle, Wa
Owner Name: American Manganese Corp.
Home Office: Seattle, Wa
Years: 1951 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1945
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: Olympic Mountains
Mineral Deposit Model
Model Name: Volcanogenic Mn, Olympic Peninsula
Orebody
Form: LENSES, PODS, PINCH AND SWELL
Structure
Type: L
Description: Basalt Is Highly Fractured And Cut By Many Minor Faults
Alterations
Alteration Type: L
Alteration Text: Basalt Is Spilitized
Rocks
Not available
Analytical Data
Analytical Data: SEVERAL SAMPLES FROM VARIOUS PARTS OF ORE BODY RAN 4.95-35.2% MN. THE RICHEST MN SAMPLE CONTAINED ALSO 6.9% FE, 2.11% SIO2 (MAGILL). OTHER ANALYSES YIELDED 23.4-26.4% MN, 4.3-18% FE, 23.4-39.1% SIO2, 6.9-12.3% CAO (HUNTTING)
Materials
Ore: Hematite
Ore: Bementite
Gangue: Jasper
Comments
Comment (Location): UNSURVEYED. ON STEEP SOUTH SLOPE OF MOUNT CONSTANCE. DERKEY AND OTHERS (1990) INDICATE LOCATION AS R. 3 W., NOT R. 4 W. THE CLAIMS ARE BOUNDED BY BULL ELK CREEK ON THE WEST, MINER'S CREEK ON THE EAST, AND THE DOSEWALLIPS RIVER ON THE SOUTH. THE PROPERTY IS REACHED FROM BRINNON ON W.S. HIGHWAY 101 BY FOLLOWING THE ROAD ALONG THE DOSEWALLIPS RIVER WESTERLY FOR ABOUT 13 MI. MAIN WORKINGS RANGE IN ELEVATION FROM 1,200-4,200 FT. PROPERTY CONSISTS OF 28 UNPATENTED CLAIMS
Comment (Production): SMALL PRODUCTION IN THE 1940'S
Comment (Deposit): 3 LIMESTONE BEDS IN BASALT CONTAIN LENSES OF MN ORE, SOME TO 25 FT THICK.
Comment (Workings): 27 FT ADIT, OPENCUTS, TRENCHES
Comment (Deposit): SEE ALSO MRDS RECORD M700321
References
Reference (Production): DERKEY AND OTHERS, 1990
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. 104.
Reference (Deposit): MAGILL, E.A., 1960, MANGANESE DEPOSITS OF THE OLYMPIC PENINSULA, WASH.: U.S. BUREAU OF MINES REPORT OF INVESTIGATINS 5530, P. 55-57, 76.
Reference (Deposit): HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37, P. 259.
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.
