The Groshong Mine is a silver 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: Silver
Lat, Long: 44.32139, -103.64361
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.
Groshong Mine MRDS details
Site Name
Primary: Groshong Mine
Secondary: Silver Queen Group
Commodity
Primary: Silver
Secondary: Lead
Tertiary: Vanadium
Location
State: South Dakota
County: Lawrence
District: Galena District
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: Black Hills National Forest
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Stewart, H. H. And Thompson, Nels
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
Form: FLATTENED LENTICULAR BODIES CONFORMABLE TO BEDDING
Structure
Type: L
Description: The Deadwood Formation Dips 10 Deg Ne And Within The Mine Is 5 - 11 Deg From N 15 Deg W To N 80 Deg E
Alterations
Alteration Type: L
Alteration Text: Highly Oxidized Ore To A Soft, Yellow-Brown
Rocks
Not available
Analytical Data
Not available
Materials
Ore: Lead
Ore: Galena
Ore: Silver
Comments
Comment (Location): CENTER OF SECTION
Comment (Development): GROSHONG CLAIM ; ECON.COM: HIGH VALUES AG & PB, SOMETIMES VANADIUM AS HIGH AS 5%
Comment (Workings): TWO CLOSELY SPACED PORTALS LEADING INTO A SINGLE ADIT, WHICH EXTENDS NORTHEAST ALONG A VERTICAL MINERALIZED FRACTURE FOR APPROXIMATELY 310 FEET.
References
Reference (Deposit): US BUREAU OF MINES, 1954 , BLACK HILLS MINERALS 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.
Reference (Production): US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES, INFORMATION CIRCULAR 7688
The Top Ten Gold Producing States
These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.
