Golconda Group

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

Name: Golconda Group  

State:  Idaho

County:  Custer

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.


Satelite image of the Golconda Group

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

"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.