The Tornado Mine is a gold and silver mine located in Lawrence county, South Dakota at an elevation of 5,919 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: 5,919 Feet (1,804 Meters)
Commodity: Gold, Silver
Lat, Long: 44.335, -103.85000
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.
Tornado Mine MRDS details
Site Name
Primary: Tornado Mine
Secondary: Golden Reward Group
Commodity
Primary: Gold
Primary: Silver
Location
State: South Dakota
County: Lawrence
District: Ruby Basin District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Golden Reward Mining And Milling Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
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
Type: L
Description: Several Dikes And Minor Faults; One Fault With A 300-Feet Downthrow To The East Lies Just West Of The Main Workings.
Alterations
Alteration Type: L
Alteration Text: Some Oxidized Ore
Rocks
Name: Phonolite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Name: Phonolite
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian
Name: Phonolite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cambrian
Analytical Data
Analytical Data: AVERAGE VALUE = 1 OZ AU/TON. IN THE NORTHERN PART OF THE MINE VALUES ARE 2 OZ AU/TON
Materials
Ore: Silver
Ore: Gold
Comments
Comment (Production): MOST PRODUCTIVE OF GOLDEN REWARD BUT SEPARATE FIGURES NOT AVAILABLE.
Comment (Location): SE 1/4 OF SEC. 1 AND EXTENDS INTO SEC. 6
Comment (Deposit): THICKNESS RANGES FROM 6 - 14 FT; 36 DISTINCT ORE SHOOTS. THE MAIN (TORNADO) SHOOT EXTENDS SOUTH WHERE IT IS KNOWN AS THE MOGUL SHOOT IN THE MOGUL MINE. ITS COMBINED LENGTH IN BOTH MINES IS 4153 FT AND WIDTH IS FROM 10 - 180 FT. THE SECOND LARGE SHOOT EXTENDED NORTH FOR 600 FT AND SOUTH FOR 1500 FT AND IS THE BOTTLESON SHOOT.
Comment (Development): UNDERLIES AT LEAST 12 CLAIMS; DEVELOPMENT THROUGH TORNADO SHAFT IN FANTAIL GULCH
References
Reference (Deposit): U.S. BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688 .
Reference (Deposit): SHAPIRO, L. H., AND GRIES, J. 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.
Reference (Deposit): SHAPIRO, L.H., AND GRIES, J.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.
Reference (Production): U.S. BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688
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