1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Denn Mine

Past Producer in Cochise county in Arizona, United States with commodities Bismuth, Copper, Gold, Lead, Silver, Zinc
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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. Materials information
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10280790
MRDS ID M241118
MAS/MILS ID 0040030599
Record type Site
Current site name Denn Mine
Related records 10046250

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -109.88815, 31.43044 (WGS84)
Elevation 1542
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Cochise(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bisbee(quadrangle 1:24,000 scale)

Douglas(quadrangle 1:100,000 scale)

Douglas(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Whitewater Draw(hydrologic unit)

Rio De Bavispe(hydrologic accounting unit)

Sonora(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Cochise

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 023 S 024 E 15 C E2 Arizona

Commodities

Commodity Importance
Bismuth Critical Tertiary
Copper Primary
Gold Secondary
Lead Primary
Silver Secondary
Zinc Critical Primary

Materials information

Materials Type of material
Anglesite Unknown
Bornite Unknown
Chalcocite Unknown
Chalcopyrite Unknown
Gold Unknown
Silver Unknown

Nearby scientific data

Main Entrance (1) -109.88815, 31.43044
ListMap

Economic information

Ore body information

  • Field Value
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 IRREGULAR
    Shape of Orebody #2 PIPELIKE
    Primary mode of Origin HYDROTHERMAL
    Date of Last Modification 910905

Comments on the geologic information

  • CERUSSITE IS ALSO PRESENT.

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1905
Year of first production 1909

Mining district

District name Warren

Land status

Ownership category Unknown

Ownership information

  • Type Owner-Operator
    Owner Phelps Dodge Corp.
    Year 1973

Reference information

Bibliographic references

  • Deposit

    KEITH S B 1973 ARIZ BUR MINES BULL 187 P 86

Reporter information

Type Date Name Affiliation Comment
Reporter 05-SEP-91 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.