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  3. Mineral Resource Data System (MRDS)

Triangle Mine

Past Producer in Esmeralda county in Nevada, United States with commodity Gold
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10047051
MRDS ID M242293
Record type Site
Current site name Triangle Mine

Geographic coordinates

Geographic coordinates: -117.20202, 37.75106 (WGS84)
Elevation 1707
Relative position ABOUT 0.6 AIRMILE S80E FROM SUMMIT OF KENDALL MOUNTAIN.

Site location context

Political divisions (FIPS codes)

Esmeralda(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

McMahon Ridge(quadrangle 1:24,000 scale)

Goldfield(quadrangle 1:100,000 scale)

Goldfield(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Ralston-Stone Cabin 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 Esmeralda

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002S 043E 19 W2 Nevada

Comments on the location information

  • IMMEDIATELY NW OF THE GOLD COIN MINE. UTM IS TO ONE SHAFT LOCATED ON THE BLOCK OF 7 CLAIMS. ; INFO FROM LAND.ST :1972

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Milltown Andesite
    Rock description Milltown Andesite
    Stratigraphic age (youngest) Miocene
    Chronological age 21.5
    Dating method K-Ar
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Miocene
    Chronological age 21.5
    Dating method K-Ar

Nearby scientific data

(1) -117.20202, 37.75106
ListMap

Economic information

Ore body information

  • General form TABULAR
    Strike N50W
    Dip VARIABLE, BUT ABOUT 75 NE
    Thickness 0.61M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1905
Year of first production 1905

Mining district

District name Goldfield District; (Diamond Field Subdistrict)

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner Diamondfield-Triangle Mining Co.(To ; Reorganized Diamondfieldtriangle Mining Co
    First year 1917
    Last year 1917

Comments on the production information

  • A LITTLE OXIDIZED ORE SHIPPED FROM 40-FT AND 70-FT LEVELS UP TO 1905

Workings at the site

  • Type of workings Underground
    Overall depth 30.48M

Comments on the workings information

  • 100-FT DEEP SHAFT WITH 3 LEVELS.

Comments on development

  • A LITTLE OXIDIZED ORE WAS SHIPPED FROM 40-FT AND 70-FT LEVELS UP TO 1905. LOW-GRADE ($30/TON) MATERIAL EXPOSED IN 1905 ON 100-FT LEVEL. IDLE 1917-1922

Reference information

Bibliographic references

  • Deposit

    RANSOME, F.L., 1909, USGS P.P. 66, P. 251.

  • Deposit

    WEED, W.H., ED., 1922, THE MINES HANDBOOK, VOL. XV., P. 1313.

  • Production

    RANSOME, F.L., 1909, P. 251.

General comments

Subject category Comment text
Deposit WELL-DEFINED "LEDGE" OF SILICIFIED ANDESITE (PROBABLY SAME VEIN AS THE GOLD COIN MINE)

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1982 La Pointe, D.D. (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.