Monte Cristo Mine

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

Name: Monte Cristo Mine  

State:  Montana

County:  Lewis and Clark

Elevation:

Primary Mineral: Silver, Gold, Copper

Lat, Long: 46.45, -112.26444

Map: View on Google Maps

Satelite View


Satelite image of the Monte Cristo Mine

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 indicate a claim status and does not necessarily indicate an area is open to prospecting.


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.