Isadorah Mine

The Isadorah Mine is a gold and silver mine located in Lawrence county, South Dakota at an elevation of 5,761 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: Isadorah Mine

State:  South Dakota

County:  Lawrence

Elevation: 5,761 Feet (1,756 Meters)

Commodity: Gold, Silver

Lat, Long: 44.32389, -103.80111

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 Isadorah Mine

Isadorah Mine MRDS details

Site Name

Primary: Isadorah Mine
Secondary: Billie Mine
Secondary: Golden Reward Group
Secondary: Rock Bluff Claim


Commodity

Primary: Gold
Primary: Silver


Location

State: South Dakota
County: Lawrence
District: Ruby Basin District


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Year First Production: 1899
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Interior Plains
Physiographic Province: Great Plains Province
Physiographic Section: Black Hills


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Name: Plutonic Rock
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cambrian

Name: Plutonic Rock
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian

Name: Plutonic Rock
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Plutonic Rock
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene


Analytical Data

Not available


Materials

Ore: Gold
Ore: Silver


Comments

Comment (Deposit): ORE LOCATED ON TOP OF PORPHYRY INTRUSION AT THE WEST END AND BELOW THE INTRUSION ON THE EAST END.


References

Reference (Deposit): US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688


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