The Jumbo Lode is a feldspar, mica, and beryllium mine located in Custer county, South Dakota at an elevation of 5,089 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: 5,089 Feet (1,551 Meters)
Commodity: Feldspar, Mica, Beryllium
Lat, Long: 43.83333, -103.39889
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.
Jumbo Lode MRDS details
Site Name
Primary: Jumbo Lode
Commodity
Primary: Feldspar
Primary: Mica
Primary: Beryllium
Location
State: South Dakota
County: Custer
District: Unorganized 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
Not available
Ownership
Owner Name: Kenneth And Godfrey Spring Of Custer, Sd
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
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: Pegmatite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Pegmatite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Microcline
Ore: Feldspar
Ore: Biotite
Ore: Beryl
Ore: Muscovite
Gangue: Quartz
Gangue: Tourmaline
Comments
Comment (Workings): TWO SMALL OPEN CUTS
Comment (Commodity): NO BERYL WAS VISIBLE WHEN INSPECTED IN 1942.
Comment (Location): ON THE LINE BETWEEN SECS 33 & 34
References
Reference (Deposit): USBM CIRC 7707, P. 74
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