The Southern Cross Mine is a silver and gold mine located in Deer Lodge county, Montana.
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
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Southern Cross Mine MRDS details
Site Name
Primary: Southern Cross Mine
Secondary: George Town
Secondary: Red Nell
Secondary: Cable
Commodity
Primary: Silver
Primary: Gold
Secondary: Copper
Tertiary: Arsenic
Tertiary: Bismuth
Location
State: Montana
County: Deer Lodge
District: Georgetown (Southern Cross, Cable) District
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
Type: Underground
Ownership
Owner Name: Anaconda Copper Mining Co.
Owner Name: Sentinel Mines, Inc., Sheridan, Mt.
Production
Year: 1968
Time Period: 1872-1968
Mined: 404000.000 mt
Material type: ore
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Polymetallic veins
Operation Type: Surface-Underground
Year First Production: 1872
Year Last Production: 1942
Discovery Year: 1866
Discovery Method: Unknown
Years of Production:
Organization:
Significant: Y
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Flint Creek Range
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Form: Tabular
Form: IRREGULAR AND COMPLEX
Structure
Type: R
Description: Philipsburg Batholith
Type: L
Description: Cable Stock
Alterations
Alteration Type: L
Alteration Text: Ferruginous And Oxidized
Rocks
Name: Limestone
Role: Host
Description: dolomitic LIMESTONE
Age Type: Host Rock
Age Young: Late Cambrian
Name: Limestone
Role: Host
Description: dolomitic LIMESTONE
Age Type: Host Rock Unit
Age Young: Late Cambrian
Analytical Data
Analytical Data: SILICEOUS- 1.47OZ AU, 1.5OZ AG, 24.9% FE
Analytical Data: 2ND CLASS- 0.48OZ AU, 0.4OZ AG, 38.5% FE
Analytical Data: HEAVEY FE ORE- 0.59OZ AU, 0.2OZ AG, 57% FC.
Analytical Data: ANALSIS OF ORE: 3.1/OZ AU, 3.4OZ AG, 53.9% FE
Materials
Ore: Tennantite
Ore: Chrysocolla
Ore: Azurite
Ore: Gold
Ore: Chalcopyrite
Ore: Malachite
Ore: Argentite
Gangue: Limonite
Gangue: Calcite
Gangue: Magnetite
Gangue: Pyrrhotite
Gangue: Quartz
Gangue: Hematite
Comments
Comment (Location): INFO FROM LAND.ST :(1971)
Comment (Development): CLAIM FIRST LOCATED 1866 BUT ALLOWED TO LAPSE, LATER RELOCATED BY SALTON CAMERON IN THE 1870'S
Comment (Deposit): FISSURE VEINS OF IRREGULAR WIDTH WHICH LIE APPROX. IN THE BEDDING PLANE OF THE COUNTRY ROCK OR CUTS STEEPLY ACROSS IT. W VEIN (MOST PRODUCTIVE) DESCRIBED ABOVE HAS A VERTICAL DEPTH OF 200 FT. ORE WAS RICHER A FEW FT BELOW THE SURFACE THAN AT THE OUTCROP. THE E VEIN CUTS THE COUNTRY ROCK AT A LARGE ANGLE ALONG BOTH STRIKE AND DIP. IT IS NOT SO WIDE, OF A LOWER GRADE, AND MORE PERSISTENT THAN THE W VEIN. ITS STRIKE IS 50 W, DIPS 60 NE AND HAS BEEN FOLLOWED FOR GT 400 FT ALONG ITS STRIKE. A THIRD VEIN IS LOCATED BETWEEN THE OTHER TWO AAND DIPS 50 E.
Comment (Workings): INCLINED SHAFT WITH 5 LEVELS, ON 150 FT LEVEL A 300 FT CROSSCUT TUNNEL CONNECTS WITH THE WORKINGS ON THE EAST VEIN, WHICH HAD A SHAFT AND 3 LEVELS.
Comment (Geology): STRATA IN THE HASMARK, RED LION, & MAYWOOD FMS. ALL STRIKE NORTHWARD AND DIP 40 TO 50 DEG N.COUNTRY ROCK IS GREATLY DISTURBED AND IS TRANSVERSED BY A LARGE NUMBER OF FAULTS
References
Reference (Deposit): 1906 GEOLMAP EMMONS AND CALKINS
Reference (Deposit): GEOLMAP MBMG EARLL
Reference (Production): MBMG BULL 84
Reference (Deposit): MBMG BULL 84, P. 34, 35, 37.
Reference (Deposit): USGS PP 74, P. 231-34.
Reference (Deposit): MBMG MEM 31, P. 21.
Reference (Deposit): USGS-USBM MINERAL YEARBOOKS 1905-1942.
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.
