The Little Rock Placer is a gold mine located in Lewis and Clark county, Montana at an elevation of 4,800 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: 4,800 Feet (1,463 Meters)
Commodity: Gold
Lat, Long: 46.55, -112.07750
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.
Little Rock Placer MRDS details
Site Name
Primary: Little Rock Placer
Commodity
Primary: Gold
Location
State: Montana
County: Lewis and Clark
District: Helena District
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Florian Glineski
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Deposit Type: Placer
Operation Type: Unknown
Discovery Year: 1932
Discovery Method: 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: Boulder Batholith
Alterations
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Mississippian
Name: Granite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Granite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Analytical Data
Analytical Data: ASSAY REPORT: AU 4.32 MGS OR .10 DOLLARS/CUBIC YARD
Materials
Ore: Gold
Comments
Comment (Workings): NO. 1 CUT; 15 FEET LONG BY 12 FEET WIDE BY 14 FOOT FACE. NO 2 TEST HOLE; 2.5 FEET LONG BY 18 INCHES WIDE BY 2 FEET DEEP NO. 3 CUT; 21 FEET LONG BY 7 FEET WIDE BY 8 FOOT FACE. FRAME DWELLING SHED AND GARAGE IN GOOD REPAIR
Comment (Deposit): THE MAJOR ORE LOCUS ON THE CLAIM IS AT THE CONTACT POINT OF LIMESTONE AND GRANITE
References
Reference (Deposit): 1958 DIREXPL USF
Reference (Deposit): FS FILES
Principal Gold Districts of Montana
In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.
