Johnson Claim

The Johnson Claim is a gold and copper mine located in Granite county, Montana.

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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: Johnson Claim

State: Montana

County: Granite

Elevation:

Primary Mineral: Gold, Copper

Lat, Long: 46.46667, -113.25361

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Johnson Claim MRDS details

Site Name

Primary: Johnson Claim

Commodity

Primary: Gold
Primary: Copper

Location

State: Montana
County: Granite
District: Maxville District

Land Status

Land ownership: National Forest

Holdings

Workings

Ownership

Production

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: John Long Mountains

Mineral Deposit Model

Orebody

Structure

Type: R
Description: Philipsburg Anticline, Philipsburg Batholith

Alterations

Rocks

Name: Quartzite
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic

Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Analytical Data

Analytical Data: LOW VALUES OF AU & CU

Materials

Ore: Copper

Ore: Gold

Gangue: Quartz

Gangue: Iron

Comments

Comment Type: Location	Comment: INFO FROM LAND.ST :(1971)
Comment Type: Deposit	Comment: THE VEIN IS FOLLOWED BY POST-MINERAL FISSURES WITH SLICKENSIDES PARALLEL TO THE VEIN.

References

Reference Category: Deposit

Reference: USGS PP 78, P. 260, PL. 1