The Atlantic and Pacific Mine is a gold mine located in Madison county, Montana at an elevation of 8,005 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: 8,005 Feet (2,440 Meters)
Commodity: Gold
Lat, Long: 45.6481, -111.98390
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.
Atlantic and Pacific Mine MRDS details
Site Name
Primary: Atlantic and Pacific Mine
Secondary: Atlantic & Pacific Mine
Secondary: A & P Mine
Secondary: Atlantic Pacific Mine
Commodity
Primary: Gold
Tertiary: Silver
Tertiary: Copper
Location
State: Montana
County: Madison
District: Pony
Land Status
Land ownership: National Forest
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: 2900 Development Corp.
Percent: 100.0
Home Office: Montana
Info Year: 1994
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Surface-Underground
Mining Method: Unknown
Year First Production: 1988
Discovery Method: Ore-Mineral In Place
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): A SOIL SAMPLE COLLECTED AT THE BASE OF THE HEAP LEACH PAD REVEALED A CYANIDE CONCENTRATION OF 16.1 MG/KG, AND A WATER SAMPLE COLLECTED FROM A LINED IMPOUNDMENT REVEALED 0.75 MG/1 CYANIDE. ONE DISCHARGING ADIT WAS IDENTIFIED AT THE SITE. MAXIMUM CONTAMINANT LEVELS WERE EXCEEDED FOR CADMIUM AND COPPER IN THE ADIT DISCHARGE. THE ADIT DISCHARGE PH MEASUREMENT WAS 3.6. PARK CREEK FLOWED ADJACENT TO THE SITE ON THE WEST SIDE. SURFACE WATER AND SEDIMENT SAMPLES WERE COLLECTED UPSTREAM AND DOWNSTREAM FROM THE SITE. AN OBSERVED RELEASE TO PARK CREEK WAS DOCUMENTED FOR LEAD. THREE POTENTIALLY HAZARDOUS OPEN ADITS WERE IDENTIFIED AT THE SITE.
References
Reference (Deposit): U.S. BUREAU OF MINES MISSOURI RIVER BASIN PRELIMINARY
Reference (Deposit): U.S. BUREAU OF MINES IC 6972, 1937, P. 38.
Reference (Deposit): U.S. GEOLOGICAL SURVEY BULLETIN 574, 1914, P. 121.
Reference (Deposit): PRIORITY SITES, SUMMARY REPORT, MARCH 1994, P. 5-161.
Reference (Deposit): REPORT 73, 1952, P. A-14.
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.
