The Sheep Mountain Group is a manganese mine located in Baker county, Oregon.
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.
Sheep Mountain Group MRDS details
Site Name
Primary: Sheep Mountain Group
Commodity
Primary: Manganese
Location
State: Oregon
County: Baker
District: Lower Burnt River Area
Land Status
Land ownership: BLM Administrative Area
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.
Holdings
Not available
Workings
Not available
Ownership
Owner Name: John Arthur
Production
Year: 1952
Material type: MN
Description: Ap_Grade: ^23 % Mn
Year: 1952
Time Period: 1952
Material type: MN
Description: Cp_Grade: ^23% Mn
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Payette Section
Mineral Deposit Model
Model Name: Sedimentary Mn
Orebody
Form: IRREGULAR MASSES
Structure
Not available
Alterations
Not available
Rocks
Name: Argillite
Role: Host
Age Type: Host Rock
Age Young: Early Triassic
Name: Argillite
Role: Host
Age Type: Host Rock Unit
Age Young: Early Triassic
Analytical Data
Analytical Data: AVERAGE OF 27.62 % MANGANESE
Materials
Ore: Psilomelane
Ore: Pyrolusite
Ore: Manganite
Gangue: Quartz
Comments
Comment (Deposit): CONSV. RECORD ( M014407 ) MERGED WITH THIS RECORD AND DELETED FROM OREGON FILE.
Comment (Location): TWO UNPATENTED CLAIMS
References
Reference (Deposit): LIBBEY, F. W., ET AL., 1942 , MANGANESE IN OREGON: ODGMI, BULL 17 , P. 53 .
Reference (Deposit): BROOKS, H.C., MCINTYRE, J.R., AND WALKER, G.W., 1976 GEOLOGIC MAP OF THE OREGON PART OF THE BAKER 1DEG BY 2DEG QUADRANGLE, ODGMI GMS-7, GEOL. MAP
Reference (Deposit): WAGNER, N.S., 1952, FILE REPORT: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES.
Reference (Deposit): 1952 RECON ODGMI FILE REPOR
Oregon Gold
"Where to Find Gold in Oregon" 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 Oregon. Read more: Where to Find Gold in Oregon.
