1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Index

Past Producer in Elko county in Nevada, United States with commodities Lead, Silver, Gold, Copper
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10046039
MRDS ID M233947
Record type Site
Current site name Index
Alternate or previous names Black Forest

Geographic coordinates

Geographic coordinates: -114.81782, 40.56159 (WGS84)
Elevation 2812
Relative position SSW OF BLACK FOREST MINE

Site location context

Political divisions (FIPS codes)

Elko(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Spruce Mountain(quadrangle 1:24,000 scale)

Wendover(quadrangle 1:100,000 scale)

Elko(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Long-Ruby Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Elko

Public Land Survey System information

Meridian Township Range Section Fraction State
031N 063E 13,14 Nevada

Comments on the location information

  • UPPER JOHNSON GULCH

Commodities

Commodity Importance
Lead Primary
Silver Secondary
Gold Secondary
Copper Secondary

Materials information

Materials Type of material
Hematite Gangue
Limonite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -114.81782, 40.56159
ListMap

Economic information

Ore body information

  • General form TABULAR
    Length 243.84M
    Width 30.48M

Controls for ore emplacement

  • Fault Zone & Breccia

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Spruce Mountain

Ownership information

  • Type Owner
    Owner Index Mining Co.
    First year 1916

Comments on the production information

  • SMALL PRODUCTION INCLUDED SOME COPPER

Comments on the workings information

  • TUNNELS

Comments on development

  • FEE, PATENTED CLAIM; INACTIVE IN 1916

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit SHEAR ZONE
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

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1979 Tingley, J.V. Nevada Bureau of Mines and Geology

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.