Cobra Negra Group

Past Producer in Hidalgo county in New Mexico, United States with commodities Copper, Silver, Gold, Lead
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. 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 10101439
MRDS ID D003358
Record type Site
Current site name Cobra Negra Group
Alternate or previous names Cobre Negro Mine: Claims Patented In 1914, Cobra Negra, Black Sam, Tom Cat, Black Copper
Related records 10150108

Geographic coordinates

Geographic coordinates: -108.76369, 32.30456 (WGS84)
Elevation 1414
Relative position ABOUT 4.5 MILES S 47 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 14 E2 New Mexico

Comments on the location information

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

Commodities

Commodity Importance
Copper Primary
Silver Primary
Gold Primary
Lead Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Copper Ore
Malachite Ore
Quartz 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) -108.76369, 32.30456

Economic information

Ore body information

  • General form PINCH AND SWELL
    Strike NORTHEAST
    Dip SOUTHEAST
    Thickness 1.37M

Controls for ore emplacement

  • Fault-Fracture Structural Control.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1950
Year of last production 1925

Mining district

District name Lordsburg District: Virginia Subdistrict

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner L. E. Foster
    Home office Silver City, N.M.
    First year 1925
  • Type Owner
    Owner North American Mining Co. : Susquehanna Mining Co.
    First year 1900

Workings at the site

  • Type of workings Surface/Underground
    Length 213.36M
    Overall depth 152.4M

Comments on the workings information

  • WORKINGS REPORTED IN THE 1900'S CONSISTED OF A 500 FT. SHAFT, ABOUT 700 FT. OF DRIFTS AND SEVERAL SMALL OPEN CUTS.

Reference information

Bibliographic references

  • Deposit

    LASKY, S. G., 1938, GEOLOGY AND ORE DEPOSITS OF THE LORDSBURG MINING DISTRICT, HIDALGO COUNTY, NEW MEXICO: U.S. GEOLOGICAL SURVEY BULL. 885, 62P

  • Deposit

    LINDGREN, W., GRATON, L. C., AND GORDON, C. H., 1910, THE ORE DEPOSITS OF NEW MEXICO: U.S. GEOLOGICAL SURVEY PROF. PAPER 68, P 335

  • Deposit

    THORMAN, C.H., AND DREWES, H., 1978 USGS MISC. GEOLOGIC INVESTIGATIONS MAP, I-1151

  • Deposit

    NMBMMR GENERAL FILE DATA

General comments

Subject category Comment text
Deposit FOUR PATENTED CLAIMS MINERAL SURVEY NUMBER 1504 COVERING 66.044 ACRES. ON VEIN TRENDING NE, JUST NORTH OF SW END OF EMERALD VEIN IN ANDESITE.

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.