The Mary Ann Mine is a silver and lead mine located in Flathead county, Montana at an elevation of 4,219 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: 4,219 Feet (1,286 Meters)
Commodity: Silver, Lead
Lat, Long: 47.92167, -114.57694
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.
Mary Ann Mine MRDS details
Site Name
Primary: Mary Ann Mine
Commodity
Primary: Silver
Primary: Lead
Tertiary: Copper
Location
State: Montana
County: Flathead
District: Hog Heaven District
Land Status
Land ownership: State
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
Type: Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1930
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Southern Salish Mountains
Mineral Deposit Model
Not available
Orebody
Form: PODS, SHOOTS
Structure
Type: R
Description: Shroder Creek Fault; Elk Mountain Anticline. Both Trend Nw.
Type: L
Description: West-Trending Fractures, Porphyritic Latite Plug.
Alterations
Not available
Rocks
Name: Latite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Latite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Galena
Ore: Bornite
Ore: Enargite
Ore: Argentite
Gangue: Pyrite
Gangue: Alunite
Gangue: Quartz
Gangue: Barite
Gangue: Clay
Comments
Comment (Location): 0.25 MI E OF FLATHEAD MINE
Comment (Deposit): ORE BODIES DISCOVERED THUS FAR ARE SMALL DEPOSIT BELIEVED TO HAVE FORMED AT A SHALLOW DEPTH
Comment (Workings): ONE ADIT WITH 125 FT WINZE. SOME STOPING IS EVIDENT
Comment (Geology): TWO STAGES OF MINERALIZATION: FINE GRAINED QUARTZ AND PYRITE WERE FORMED DURING THE FIRST STAGE; THE ROCK WAS THEN FRACTURED, AND THE FRACTURES WERE HEALED, LARGELY BY VERY FINE GRAINED QUARTZ, BARITE AND SULFIDES. LATITE HAS A CELLULAR STRUCTURE RESULTING FROM LEACHING AND REPLACEMENT OF FELDSPAR PHENOCRYSTS.
References
Reference (Deposit): JOHNS, W. M., ETAL, 1963 , GEOLOGIC INVESTIGATIONS IN THE KOOTENAI-FLATHEAD AREA, NORTHWEST MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY BULL. 36 , PLATE 4 .
Reference (Deposit): JOHNS, W. M., 1970 , GEOLOGY AND MINERAL DEPOSITS OF LINCOLN AND FLATHEAD COUNTIES, MONTANA: MONTANA BUREAU OF MINES AND GEOLOGY BULL. 79 , PP. 137 - 142 .
Reference (Deposit): CONSV. DIV. COMP. DATE, 06-19-1970
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.
