Nacimiento Mountains District

The Nacimiento Mountains District is a copper mine located in Sandoval county, New Mexico.

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: Nacimiento Mountains District
Secondary: Sierra Nacimiento District
Secondary: Eureka Mine
Secondary: Copper City
Secondary: Naciemento Mine
Secondary: Naciemiento Mine
Secondary: Nacimiento Mine
Secondary: San Francesca
Secondary: San Miguel Mine
Secondary: Senorita
Secondary: Senorito
Secondary: Nacimiento Copper Uranium Project
Secondary: Nacimiento District
Secondary: Nacimiento Deposit

Commodity

Primary: Copper
Secondary: Silver

Location

State: New Mexico
County: Sandoval
District: NACIMIENTO MOUNTAINS DISTRICT

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Year: 2005
Time Period: 1880-1964
Mined: 25133.000 mt
Material type: Data for 1929, 1967, and 1971-1974 is withheld. McLemore and Hoffman report 27,704 short tons (=25133 mt)

Deposit

Record Type: District
Operation Category: Past Producer
Deposit Type: DISSEMINATED RED-BED COPPER, DISSEMINATED METAMORPHIC COPPER
Operation Type: Unknown
Year First Production: 1880
Year Last Production: 1974
Discovery Year: 1850
Years of Production:
Organization:
Significant: Y

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: R
Description: NACIMIENTO, BLUE BIRD, AND EL CAJETE FAULTS, AND A MAJOR MONOCLINAL FOLD

Alterations

Not available

Rocks

Not available

Analytical Data

Not available

Materials

Not available

Comments

Comment (Deposit): "Deposit" includes the Nacimiento, Eureka, and San Miguel Mines as well as smaller "mines". Reserves are for the Nacimiento Mine, the largest of the mines in the district. Production is not reported for the individual mines.

Comment (Reserve-Resource): Reserves are reported only for the Nacimiento Mine, not for the entire district/deposit. As of May 2, 1980 (McLemore and Hoffman, 2005, p. 450) reserves are 5.4 million metric tons at 0.56% Cu and an additional 11.8 million mt at 0.48%. As of 1969, reserves at the Nacimiento Mine were estimated to be 9.6 million tons (short tons?) at 0.71% Cu (Woodward and others, 1974, p. 108)

Comment (Production): Production for the entire district is 27,704 short tons ore containing 75,297 oz Ag, and 7,582,410 lbs Cu (McLemore and Hoffman, 2005, p. 451)

References

Reference (Deposit): McLemore, V.T., and Hoffman, G., 2005, Mineral deposits in Rio Arriba County, New Mexico: New Mexico Geological Society, 56th Field Conference Guidebook, Geology of the Chama Basin, p. 445-456.

Reference (Deposit): JONES, F.A., 1904, NEW MEXICO MINES AND MINERALS, NEW MEXICAN PRINTING CO., P. 187-189.

Reference (Deposit): ELSTON, W.E., 1967, NMBMMR BULL 81, P. 25-29.

Reference (Deposit): LINDGREN, W., GRATON, L.C., AND GORDON, C.H., 1910, USGS PP 68, P. 143-145.

Reference (Deposit): ANDERSON, E.C., 1957, NMBMMR BULL 39, P. 108-109.

Reference (Deposit): SOULE, J.H., 1956, USBM IC 7740, P. 44-47.

Reference (Deposit): NMBMMR GENERAL FILE DATA

Reference (Deposit): WOODWARD, L.A., KAUFMAN, W.H., AND SCHUMACHER, O.L., 1974, NMGS GUIDEBOOK, 25TH FIELD CONFERENCE, P. 295-297.

Reference (Deposit): TALBOTT, L.W., 1974, NMGS GUIDEBOOK, 25TH FIELD CONFERENCE, P. 301-303.

Reference (Deposit): WOODWARD, L.A., AND OTHERS, 1974, ECON GEOL., V. 69, P. 108-120.

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