Eighty-Five Mine

Past Producer in Hidalgo county in New Mexico, United States with commodities Copper, Gold, Silver, Lead, Zinc
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. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10010005
MRDS ID D003346
Record type Site
Current site name Eighty-Five Mine
Alternate or previous names Includes the Superior Mine, Dundee Mine and Jim Crow Mine: Eighty-Five Group.
Related records 10272184

Geographic coordinates

Geographic coordinates: -108.75174, 32.31456 (WGS84)
Elevation 1471
Relative position ABOUT 3.5 MILES S 46 W OF LORDSBURG.

Site location context

Political divisions (FIPS codes)

Hidalgo(county)

New Mexico(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gary(quadrangle 1:24,000 scale)

Lordsburg(quadrangle 1:100,000 scale)

Silver City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Animas Valley(hydrologic unit)

Upper Gila(hydrologic accounting unit)

Upper Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States New Mexico Hidalgo

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 023S 019W 12,13 SW (12); NW (13) New Mexico

Comments on the location information

  • ACCURATE LOCATION IS SHOWN ON USGS MISC. GEOLOGIC INVESTIGATIONS MAP I-1151.

Commodities

Commodity Importance
Copper Primary
Gold Primary
Silver Primary
Lead Secondary
Zinc Critical Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Calcite Gangue
Chlorite Gangue
Quartz Gangue
Sericite Gangue
Tourmaline Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -108.75174, 32.31456

Economic information

Geologic structures

Type of structure Local
Structure description Northeast Striking Vein Set.

Ore body information

  • General form PINCH AND SWELL
    Strike EMERALD VEIN N 33 E TO N 65 E
    Dip 80 SE
    Thickness 6.71M
    Length 1500M

Controls for ore emplacement

  • Fault-Fracture Structural Control.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1885
Year of last production 1973

Mining district

District name Lordsburg District: Virginia Subdistrict

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Ted Brannon And Marvin Fuller
    Home office Silver City, N.M.
    First year 1961
  • Type Owner
    Owner Phelps Dodge Corp.
    Home office Tyrone, N.M.
    First year 1960

Comments on the production information

  • AVERAGE GRADE OF ORE (1904-1931) 2.8% CU, 42.2 G/T AG, 3.8 G/T AU.

Workings at the site

  • Type of workings Underground
    Length 12874.4M
    Overall depth 685.8M

Comments on the workings information

  • WORKINGS CONSIST OF FIVE SHAFTS, AN ADIT, AND 16 WORKING LEVELS CONTAINING MORE THAN EIGHT MILES OF DRIFTS AND STOPES.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit FIFTY PATENTED CLAIMS COVERING ABOUT 700 ACRES. EMERALD VEIN (N33-65E,SE) LONGEST AND MOST PRODUCTIVE IN DISTRICT. VEIN MORE THAN 1,500 M. LONG AND CUTS BOTH GRANODIORITE AND ANDESITE.
Deposit TOTAL VALUE PRODUCED WAS $17,250,000. ALSO PRODUCTION FROM 1963-1973. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-78 Richter, D. H. New Mexico Bureau of Mines and Mineral Resources
Updater 01-JAN-83 Menzie, David New Mexico Bureau of Mines and Mineral Resources

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.