The Ross Hannibal Group is a gold and silver mine located in Lawrence county, South Dakota at an elevation of 5,801 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: 5,801 Feet (1,768 Meters)
Commodity: Gold, Silver
Lat, Long: 44.32278, -103.80028
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.
Ross Hannibal Group MRDS details
Site Name
Primary: Ross Hannibal Group
Secondary: Hannibal Mine
Secondary: North Star Mine
Secondary: And Mikado Mine
Commodity
Primary: Gold
Primary: Silver
Tertiary: Uranium
Tertiary: Fluorine-Fluorite
Location
State: South Dakota
County: Lawrence
District: Ruby Basin District
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Golden Reward Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Year First Production: 1890
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: 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
Analytical Data
Analytical Data: ONE SAMPLE = 255.08 OZ/TON OF AG AND 0.44 OZ/TON OF AU: AVERAGE ORE SAMPLE RUNS 1.75 OZ/TON OF AU
Materials
Ore: Fluorite
Gangue: Pyrite
Comments
Comment (Deposit): STRIKES N-S AND N 27 DEG W
Comment (Workings): DEVELOPMENT WAS THROUGH TWO DRIFTS: SOME OPEN CUT MINING WAS DONE ON THE NORTH STAR CLAIM TO THE NORTH AND WEST OF THE MAIN ORE BODY.
Comment (Geology): ORE BODY WAS ELEVATED BY AN IRREGULAR SILL
Comment (Location): CENTER OF SECTION
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 PALOEZOIC AND TERTIARY AGE OF THE NORTHERN BLACK HILLS, SOUTH DAKOTA, SOUTH DAKOTA SCHOOL OF MINES AND TECHNOLOGY.
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