The Londonderry Mine is a gold mine located in Granite county, Montana at an elevation of 5,141 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: 5,141 Feet (1,567 Meters)
Commodity: Gold
Lat, Long: 46.4742, -113.24250
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.
Londonderry Mine MRDS details
Site Name
Primary: Londonderry Mine
Commodity
Primary: Gold
Tertiary: Silver
Location
State: Montana
County: Granite
Land Status
Land ownership: Unknown
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
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Unknown
Operation Type: Surface-Underground
Mining 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
Not available
Alterations
Not available
Rocks
Not available
Analytical Data
Not available
Materials
Not available
Comments
Comment (Environmental Factors): ONE DISCHARGING ADIT WAS IDENTIFIED AT THE SITE. THE PH MEASUREMENT WAS 7.3. MAXIMUM CONTAMINANT LEVELS FOR ARSENIC AND CADMIUM WERE EXCEEDED IN THE DISCHARGE. AN OBSERVED RELEASE TO FLINK CREEK (SEDIMENT) WAS DOCUMENTED FOR MERCURY. SURFACE WATER SAMPLES WERE NOT COLLECTED DUE TO EXTREMELY HIGH FLOW AND LIKELY EXCESSIVE DILUTION.
References
Reference (Deposit): P. 259, PLATE 2.
Reference (Deposit): U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 78, 1913,
Reference (Deposit): PRIORITY SITES, SUMMARY REPORT, MARCH 1994, P. 5-67.
Reference (Deposit): MONTANA DEPARTMENT OF STATE LANDS. ABANDONED HARDROCK MINES
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.
