The Golconda Group is a silver mine located in Custer county, Idaho at an elevation of 8,301 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: 8,301 Feet (2,530 Meters)
Commodity: Silver
Lat, Long: 44.6081, -115.02390
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.
Golconda Group MRDS details
Site Name
Primary: Golconda Group
Commodity
Primary: Silver
Secondary: Gold
Secondary: Zinc
Secondary: Lead
Location
State: Idaho
County: Custer
District: Sheep Mountain 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: Challis National Forest
Holdings
Not available
Workings
Not available
Ownership
Owner Name: W. H. Casto
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1903
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Salmon River Mountains
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Not available
Alterations
Alteration Type: L
Alteration Text: Sericitized
Rocks
Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Pennsylvanian
Name: Limestone
Role: Host
Age Type: Host Rock Unit
Age Young: Pennsylvanian
Analytical Data
Analytical Data: SAMPLES OF PYRRHOTITE VEIN AVE $14 AU/TON.
Analytical Data: RANDOM SAMPLE CONTAINED 60 OZ AG/TON
Materials
Ore: Galena
Ore: Sphalerite
Gangue: Pyrrhotite
Gangue: Quartz
Gangue: Pyrite
Comments
Comment (Location): NW Slope of Sheep Mtn.
Comment (Deposit): 2 Veins - Golconda No. 1 Described Above and A Flat Vein of Pyrrhotite Which Strikes E-W, Dips 30 Deg N and Is 20 Ft. Long
References
Reference (Deposit): Umpleby, J. B., And Livingston, D. C., 1920, A Reconnaissance In South Central Idaho: Idaho Bureau Of Mines And Geology Bulletin 3, 23 P
Reference (Deposit): Treves Samual B 1953 Univ Of Idaho Ms Thesis 44p
Idaho Gold
"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more: Where to Find Gold in Idaho.