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  3. Mineral Resource Data System (MRDS)

Morenci Mill

Producer in Greenlee county in Arizona, United States with commodity Copper
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Land status
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10282439
MAS/MILS ID 0040110040
Record type Site
Current site name Morenci Mill

Geographic coordinates

Point of reference Plant
Geographic coordinates: -109.34425, 33.0668 (WGS84)
Elevation 1219
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Greenlee(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Clifton(quadrangle 1:24,000 scale)

Clifton(quadrangle 1:100,000 scale)

Clifton(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Francisco(hydrologic unit)

Upper Gila(hydrologic accounting unit)

Upper Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Greenlee

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 004 S 029 E 22 SE Arizona

Commodities

Commodity Importance
Copper Primary

Economic information

Economic information about the deposit and operations

Operation type Processing Plant
Development status Producer
Commodity type Metallic
Significant No

Land status

Ownership category Private

Ownership information

  • Type Unknown
    Owner Phelps Dodge
    ID 200024

Reference information

Bibliographic references

  • Deposit

    USBM PROP. TAB OWN/OP: PHELPS DODGE

  • Deposit

    1973 CAP: 900000 ST CU

Reporter information

Type Date Name Affiliation Comment
Reporter 21-FEB-1984 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusActive since 12/03/1971
MSHA mine ID0200024
Mine name (MSHA)Freeport-McMoRan Morenci Inc.
Current operatorFreeport-McMoRan Morenci Inc.
Current controller (parent)Freeport-McMoRan Inc
Mine typeSurface (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.

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:

  • Phelps Dodge — acquired by Subsidiary of Freeport-McMoRan (2007)
    Acquired by Freeport-McMoRan Copper & Gold in 2007 in what was then the largest mining-industry deal ever (~US$26 B).

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.

Maps centered on this site

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.