The Gentle Annie Mine is a gold mine located in Lawrence county, South Dakota at an elevation of 5,400 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
Elevation: 5,400 Feet (1,646 Meters)
Commodity: Gold
Lat, Long: 44.36111, -103.75639
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.
Gentle Annie Mine MRDS details
Site Name
Primary: Gentle Annie Mine
Commodity
Primary: Gold
Secondary: Silver
Location
State: South Dakota
County: Lawrence
District: Lead District
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Homestake Mining Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Placer
Operation Type: Unknown
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: Associated Rock
Age Young: Pliocene
Name: Plutonic Rock
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Plutonic Rock
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian
Name: Plutonic Rock
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cambrian
Analytical Data
Not available
Materials
Ore: Gold
Ore: Silver
Comments
Comment (Geology): CONGLOMERATE CONSISTS OF A MATRIX OF QUARTZITE AND SCHIST PEBBLES CEMENTED BY PYRITE.
Comment (Location): SE 1/4
Comment (Workings): TUNNEL EXTENDING SOUTHWEST FROM THE NEXT GULCH EAST OF BOBTAIL GULCH. STOPES WERE LOW BUT FAIRLY EXTENSIVE.
References
Reference (Deposit): US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688 .
Reference (Deposit): SHAPIRO, LEWIS H., AND GRIES, JOHN P., 1970 , ORE DEPOSITS IN ROCKS OF PALEOZOIC AND TERTIARY AGE OF THE NORTHERN BLACK HILLS, SOUTH DAKOTA, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY.
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