Grey Rock Claim

The Grey Rock Claim is a gold mine located in Deer Lodge county, Montana at an elevation of 6,240 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: Grey Rock Claim

State:  Montana

County:  Deer Lodge

Elevation: 6,240 Feet (1,902 Meters)

Commodity: Gold

Lat, Long: 46.17806, -113.10694

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 Grey Rock Claim

Grey Rock Claim MRDS details

Site Name

Primary: Grey Rock Claim
Secondary: Bung Your Eye


Commodity

Primary: Gold
Secondary: Silver
Tertiary: Iron


Location

State: Montana
County: Deer Lodge
District: Olson Gulch 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

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1885
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

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Mississippian

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Mississippian


Analytical Data

Not available


Materials

Ore: Gold
Ore: Magnetite
Gangue: Garnet
Gangue: Diopside


Comments

Comment (Location): 2.2 KM N OF WARM SPRING CREEK ; INFO FROM LAND.ST :(1971)

Comment (Deposit): METAMORPHOSED LIMESTONE CONTAINS CONSIDERABLE MAGNETITE. BEFORE MEAMORPHISM OF THE LIMESTONE THE GRANITE AND LIMESTONE WERE FRACTURED NEAR THE CONTACT. THE FRACTURED ZONE IS SAID TO CARRY GOLD.

Comment (Workings): TUNNEL

Comment (Deposit): Discovery Year: 1880'S (?)


References

Reference (Deposit): USGS PP 78, P. 244.

Reference (Deposit): MBMG BULL 84, P. 33, 35


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.