Scratch Gravel Gold Mine

The Scratch Gravel Gold Mine is a gold and silver 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: Scratch Gravel Gold Mine  

State:  Montana

County:  Lewis and Clark

Elevation:

Primary Mineral: Gold, Silver

Lat, Long: 46.6375, -112.06528

Map: View on Google Maps

Satelite View


Satelite image of the Scratch Gravel Gold Mine

Scratch Gravel Gold Mine MRDS details

Site Name

Primary: Scratch Gravel Gold Mine


Commodity

Primary: Gold
Primary: Silver
Secondary: Lead
Secondary: Zinc


Location

State: Montana
County: Lewis and Clark
District: Scratchgravel Hills District


Land Status

Land ownership: State
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: Surface/Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past 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: Scratchgravel Quartz Monzonite Stock


Alterations

Alteration Type: L
Alteration Text: Oxidation


Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic


Analytical Data

Analytical Data: 3-5 OZ/TON AU, 3-7 OZ/TON AG


Materials

Ore: Gold
Ore: Galena
Ore: Sphalerite
Gangue: Quartz
Gangue: Pyrite


Comments

Comment (Reserve-Resource): BLOCK OF ORE BETWEEN FRANKLIN MINE AND SCRATCH GRAVEL MINE THAT IS 200-300 FT. LONG IS SAID TO HAVE NOT BEEN WORKED OUT

Comment (Deposit): COULD BE EXTENSION OF FRANKLIN VEIN OR A VEIN PARALLEL TO IT. DOES NOT APPEAR TO PINCH OUT WITH DEPTH

Comment (Location): ABOUT 2.5 KM NE OF THE VA CENTER ; INFO FROM LAND.ST :(1950)

Comment (Workings): INCLINED SHAFT, SEVERAL STOPES AND RAISES, OPEN PITS. FLOODED TO A FEW FEET FROM SURFACE, 1926.


References

Reference (Deposit): USGS BULL 842, P. 43

Reference (Production): USGS BULL 842, P. 43.