The Monte Cristo Mine is a silver, gold, and copper mine located in Lewis and Clark 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
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.
Monte Cristo Mine MRDS details
Site Name
Primary: Monte Cristo Mine
Commodity
Primary: Silver
Primary: Gold
Primary: Copper
Secondary: Lead
Secondary: Zinc
Location
State: Montana
County: Lewis and Clark
District: Rimini 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: Hans Mo
Home Office: 1500 Madison Ave., Helena, Mt. 59601
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
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
Type: L
Description: Lee Mountain-Valley Forge Shear Zone
Alterations
Alteration Type: L
Alteration Text: Oxidized
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Chalcopyrite
Ore: Gold
Ore: Silver
Ore: Argentite
Ore: Cuprite
Ore: Malachite
Gangue: Tourmaline
Gangue: Quartz
Gangue: Limonite
Gangue: Hematite
Gangue: Pyrite
Comments
Comment (Workings): 140 FT SHAFT AND SEVERAL STOPES AT DIFFERENT LEVELS. BETWEEN 1900-1915 THE MINE OPENINGS CAVED. 1916 A NEW ADIT WAS STARTED ABOUT 500 FT N OF ORIGINAL OPENING, BUT THE MINE REMAINED IDLE FROM ITS COMPLETION UNTIL 1930, THEN ANOTHER SHORT ADIT, ABOUT 150 FT E OF THE ORIGINAL OPENING, WAS PUT IN. THIS MINING ACTIVITY ENDED ABOUT 1935. CAVED IN 1955. TRENCHES
Comment (Geology): THE OXIDIZED ZONE HAS BEEN PRESERVED BENEATH THE RHYOLITE SINCE TERTIARY TIME.
Comment (Location): 0.5 MI SW OF JUNCTION OF RUBY AND TENMILE CREEKS. ; INFO FROM LAND.ST :(1954)
Comment (Deposit): FAULT ZONE TRENDS N 85 W AND DIPS 80 S AND CONTAINS A QUARTZ AND TOURMALINE VEIN. THE FAULT ZONE IS FROM 5-10 FT IN THICKNESS
Comment (Production): BY 1900 THE MINE YIELDED ABOUT 150 TONS OF AG-AU-CU ORE. BY 1935 ANOTHER 150 TON OF ORE WAS PRODUCED.
References
Reference (Deposit): USGS BULL 1151, P. 112, PL. 1
Reference (Deposit): MBMG BULL 115, P. 8.
Reference (Deposit): MBMG BULL 109, P. 53.
Reference (Production): USGS BULL 1151, P. 112-13.
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.
