Modoc and American Flag Claims

The Modoc and American Flag Claims is a gold mine located in Granite county, Montana at an elevation of 8,241 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

Name: Modoc and American Flag Claims  

State:  Montana

County:  Granite

Elevation: 8,241 Feet (2,512 Meters)

Commodity: Gold

Lat, Long: 46.27972, -113.17000

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.


Satelite image of the Modoc and American Flag Claims

Modoc and American Flag Claims MRDS details

Site Name

Primary: Modoc and American Flag Claims


Commodity

Primary: Gold
Secondary: Copper
Tertiary: Barium-Barite


Location

State: Montana
County: Granite
District: Red Lion-Hidden Lake 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

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement Vein
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Flint Creek Range


Mineral Deposit Model

Not available


Orebody

Form: TABULAR


Structure

Type: R
Description: Philipsburg Batholith

Type: L
Description: Philipsburg Batholith


Alterations

Not available


Rocks

Name: Marble
Role: Host
Age Type: Host Rock
Age Young: Late Cambrian

Name: Marble
Role: Host
Age Type: Host Rock Unit
Age Young: Late Cambrian


Analytical Data

Not available


Materials

Ore: Gold
Ore: Bornite
Ore: Chalcopyrite
Gangue: Pyrite
Gangue: Calcite
Gangue: Quartz
Gangue: Barite
Gangue: Limonite


Comments

Comment (Location): N OF HANNAH MINE ON SADDLE BETWEEN THE VALLEYS OF FL1NT AND WARM SPRINGS CR. ; INFO FROM LAND.ST :(1971)

Comment (Production): SOME ORE HAS BEEN MILLED IN AN ARRASTRE

Comment (Deposit): BORDER OF PHILIPSBURG BATHOLITH PASSES THROUGH CLAIM, A FISSURE WHICH PARALLELS THE RED LION VEIN. AN ALTERED ZONE ON THE MODOC CLAIM IS 30-75 FT WIDE, STRIKES N 40 E AND IS EXPOSED IN SEVERAL PLACES FOR A DISTANCE OF SEVERAL HUNDRED FT.

Comment (Workings): MAY BE ON EXTENSION OF RED LION VEIN. CROSSCUT DRIVEN FROM WARM SPRING CREEK WESTWARD TO REACH ORE IN DEPTH BUT WAS INACCESSIBLE IN 1906 SEVERAL SHALLOW SHAFTS, SHORT TUNNELS, TRENCHES

Comment (Geology): COARSE GRANODIORITE OF PHILIPSBURG BATHOLITH IN CONTACT WITH STRONGLY ALTERED LIMESTONE. GRANODIORITE NEAR CONTACT CONTAINS CALCITE.


References

Reference (Deposit): MBMG BULL 84, P. 40, 42-44.

Reference (Deposit): USGS PP 78, P. 239.

Reference (Production): USGS PP 78.


Principal Gold Districts of Montana

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.