The Index is a lead mine located in Elko county, Nevada at an elevation of 9,226 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: 9,226 Feet (2,812 Meters)
Commodity: Lead
Lat, Long: 40.56167, -114.81694
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.
Index MRDS details
Site Name
Primary: Index
Secondary: Black Forest
Commodity
Primary: Lead
Secondary: Silver
Secondary: Gold
Secondary: Copper
Location
State: Nevada
County: Elko
District: Spruce Mountain
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Index Mining Co.
Years: 1916 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
Not available
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Not available
Alterations
Not available
Rocks
Name: Granite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Permian
Name: Granite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian
Analytical Data
Not available
Materials
Gangue: Hematite
Gangue: Limonite
Comments
Comment (Location): UPPER JOHNSON GULCH
Comment (Production): SMALL PRODUCTION INCLUDED SOME COPPER
Comment (Development): FEE, PATENTED CLAIM; INACTIVE IN 1916
Comment (Deposit): SHEAR ZONE
Comment (Workings): TUNNELS
Comment (Deposit): THE INDEX TUNNELS ARE NEAR THE INDEX FAULT ZONE, A BRECCIA 100 FT WIDE X 800 FT LONG, NEAR UPPER END OF JOHNSON GULCH. THE PROPERTY WAS INACTIVE IN 1937 AND WAS CONTROLLED BY THE INDEX MINING CO. MINERAL SURVEY 4680 ; INFO.SRC : 1 PUB LIT
References
Reference (Deposit): WILSON, CLARK L., (1937), THE GEOLOGY OF THE BLACK FOREST MINE AREA, SPRUCE MOUNTAIN, NEVADA, THESIS M.S.U. OF ARIZONA?
Reference (Deposit): SMITH, ROSCOE M., MINERAL RESOURCES OF ELKO COUNTY, NEVADA, USGS OPEN FILE REPORT, 1976-56
Reference (Production): WILSON, C.L., (1937)
Nevada Gold
Nevada has a total of 368 distinct gold districts. Of the of those, just 36 are major producers with production and/or reserves of over 1,000,000 ounces, 49 have production and/or reserves of over 100,000 ounces, with the rest having less than 100,000 ounces. Read more: Gold Districts of Nevada.
