Eighty-Five Mine

The Eighty-Five Mine is a silver, copper, and gold mine located in Hidalgo county, New Mexico at an elevation of 4,826 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

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.

Site Name

Primary: Eighty-Five Mine
Secondary: Includes the Superior Mine
Secondary: Dundee Mine and Jim Crow Mine: Eighty-Five Group.

Commodity

Primary: Silver
Primary: Copper
Primary: Gold
Secondary: Lead
Secondary: Zinc

Location

State: New Mexico
County: Hidalgo
District: Lordsburg District: Virginia Subdistrict

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: Phelps Dodge Corp.
Home Office: Tyrone, N.M.
Years: 1960 -

Owner Name: Ted Brannon And Marvin Fuller
Home Office: Silver City, N.M.
Years: 1961 -

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year Last Production: 1973
Discovery Year: 1885
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: M

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Mexican Highland

Mineral Deposit Model

Not available

Orebody

Form: PINCH AND SWELL

Structure

Type: L
Description: Northeast Striking Vein Set.

Alterations

Not available

Rocks

Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Analytical Data

Not available

Materials

Ore: Galena
Ore: Chalcopyrite
Ore: Sphalerite
Gangue: Calcite
Gangue: Quartz
Gangue: Sericite
Gangue: Chlorite
Gangue: Tourmaline

Comments

Comment (Location): ACCURATE LOCATION IS SHOWN ON USGS MISC. GEOLOGIC INVESTIGATIONS MAP I-1151.

Comment (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.

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

Comment (Workings): WORKINGS CONSIST OF FIVE SHAFTS, AN ADIT, AND 16 WORKING LEVELS CONTAINING MORE THAN EIGHT MILES OF DRIFTS AND STOPES.

Comment (Deposit): TOTAL VALUE PRODUCED WAS $17,250,000. ALSO PRODUCTION FROM 1963-1973. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

References

Reference (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.

Reference (Deposit): CLARK, K. F., 1970, ZONING, PARAGENESIS, AND TEMPERATURES OF FORMATION IN THE LORDSBURG DISTRICT: IN NEW MEXICO GEOL. SOC. GUIDEBOOK, 21ST FIELD CONF., TYRONE-BIG HATCHET MOUNTAINS-FLORIDA MOUNTAINS REGION, P 107.

Reference (Deposit): JONES, F. A., 1907, THE LORDSBURG MINING REGION, NEW MEXICO: ENG. MINING JOUR. V 84, P 445.

Reference (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.

Reference (Deposit): YOUTZ, R.B., 1931 USBM IC-6413, 26 PAGES

Reference (Deposit): ANDERSON, E.C., 1957 NMBMMR BULL 39, P. 85-88

Reference (Deposit): FLEGE, R.F., 1959 NMBMMR BULL 62, P. 26-29

Reference (Deposit): THORMAN, C.H., AND DREWES, H., 1978 USGS MISC. GEOLOGIC INVESTIGATIONS MAP, I-1151

Reference (Deposit): NMBMMR GENERAL FILE DATA

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.