The Mack Claims is a manganese and gold mine located in Grant 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.
Mack Claims MRDS details
Site Name
Primary: Mack Claims
Secondary: Red Jacket
Commodity
Primary: Manganese
Primary: Gold
Location
State: Oregon
County: Grant
District: South Fork Area
Land Status
Administrative Organization: Malheur Natioal Forest
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Intermontane Plateaus
Physiographic Province: Columbia Plateau
Physiographic Section: Walla Walla Plateau
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Analytical Data: HIGHER GRADE SAMPLES ASSAY AT 29% MN
Analytical Data: LOWER GRADE ASSAYS RANGE FROM TRACE TO 3.2% MN AND FROM NIL TO 0.08OZ/TON AU (LIBBEY ET AL , 1942)
Materials
Ore: Manganite
Gangue: Chalcedony
Comments
Comment (Commodity): CONSIDERABLE MANGANESE OXIDE STAIN, CONTAINS HIGH DEGREE OF IMPURITIES; ORE IS LOW GRADE.
Comment (Reserve-Resource): IT IS QUESTIONABLE WHETHER THERE IS SUFFICIENT MANGANESE PRESENT TO WARRANT DEVELOPMENT.
Comment (Location): ON LOST CABIN CREEK, 33 MILES FROM JOHN DAY, HALF BY HIGHWAY, HALF BY FOREST ROAD.
Comment (Workings): TWO OR THREE VERY SHALLOW CUTS.
Comment (Geology): CHERTS INTERBEDDED IN SERPENTINE. ; GEOL.DESC: MANGANESE OXIDE STAIN IS OF CONSIDERABLE EXTENT.
References
Reference (Deposit): OREGON METAL MINES HANDBOOK, 1941 , ODGMI BULL. 14 - B. P. 152 .
Reference (Deposit): LIBBEY, F. W., ET. AL., 1942 , MANGANESE IN OREGON: ODGMI BULL. 17 , P. 59 .
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.
