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  3. Mineral Resource Data System (MRDS)

Longfellow Incline

Past Producer in Greenlee county in Arizona, United States with commodities Kaolin, Copper, Gold, Silver
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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 10209853
MRDS ID M800406
MAS/MILS ID 0040110135
Record type Site
Current site name Longfellow Incline
Alternate or previous names Ariz Copper Co Property
Related records 10048281

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -109.38235, 33.1132 (WGS84)
Elevation 1707
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Greenlee(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Copperplate Gulch(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 05 C Arizona

Commodities

Commodity Importance
Kaolin Primary
Copper Primary
Gold Secondary
Silver Secondary

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Both
Deposit size Medium
Significant No

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Phelps Dodge Corp
    Home office Arizona
    Year 1980

Reference information

Bibliographic references

  • Deposit

    USGS CLIFTON QUAD

  • Deposit

    USGS GEOLOGIC ATLAS CLIFTON FOLIO AZ 1905-ECONOMIC GEOLOGY

  • Deposit

    MAP

  • Deposit

    DUNNING,CHARLES H ROCKS TO RICHES 1959

  • Deposit

    CLELAND,ROBERT G A HISTORY OF PHELPS DODGE 1952

  • Deposit

    LINDGREN,WALDEMAR THE COPPER DEPOSITS OF THE CLIFTON-MORENCI

  • Deposit

    DISTRICT AZ USGS PP 43 1905

  • Deposit

    HINTON,R J 1000 OLD AZ MINES 1970 PP 7,8,40 AND 44

  • Deposit

    WEED,WALTER H THE MINES HANDBOOK VOL XIII 1918 P 470

Reporter information

Type Date Name Affiliation Comment
Reporter 19-OCT-95 ADMR U.S. Bureau of Mines

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:

  • Phelps Dodge Corp — 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.