The Mormon Basin Placer is a gold mine located in Malheur 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.
Mormon Basin Placer MRDS details
Site Name
Primary: Mormon Basin Placer
Secondary: Colt Placers
Commodity
Primary: Gold
Location
State: Oregon
County: Malheur
District: Mormon Basin
Land Status
Land ownership: Private
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: Lloyd Dinger
Owner Name: Max Lattig
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Deposit Type: Placer
Operation Type: Unknown
Discovery Year: 1870
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: Placer Au-PGE
Orebody
Not available
Structure
Not available
Alterations
Not available
Rocks
Name: Gravel
Role: Host
Age Type: Host Rock
Age Young: Holocene
Analytical Data
Not available
Materials
Not available
Comments
Comment (Production): LATEST OPERATION BEGAN IN FALL 1979. EQUIPMENT INCLUDES DRAGLINE, TROMMEL SCREEN, PAN AMERICAN JIGS, AND SLUICE. CAPACITY, 200 YARDS PER HOUR.
Comment (Deposit): THE GRAVEL DEPOSITS COVER ABOUT 160 ACRES
Comment (Geology): MOST OF THE GOLD IS ABOVE A FALSE BEDROCK OF CLAY AND HIGHLY MICACEOUS GRANITIC DEBRIS. WORKABLE DEPTH IS GENERALLY ABOUT 8 FEET. VALUES ARE ONLY SLIGHTLY CONCENTRATED ON THE FALSE BEDROCK
References
Reference (Deposit): OREGON METAL MINES HANDBOOK, 1939, ODGMI BULL. 14-A P. 76.
Reference (Deposit): WOLFF, E.N., 1965, GEOLOGY OF THE NORTH 1/2 OF THE CAVINESS QUADRANGLE, OREGON; UNIV. OF OREGON PHD THESIS.
Reference (Deposit): 1939 COMPIL ODGMI, REFERENCE 1.
Reference (Deposit): 1979 COMPIL ODGMI, FILE
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.
