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Philadelphia Mine

Past Producer in Cochise county in Arizona, United States with commodities Gold, Lead, Silver, 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. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10046177
MRDS ID M241010
Record type Site
Current site name Philadelphia Mine
Related records 10282988

Geographic coordinates

Geographic coordinates: -109.58787, 32.20012 (WGS84)
Elevation 1920
Relative position APPROX 2 1/2 MI NE OF DOS CABEZAS

Site location context

Political divisions (FIPS codes)

Cochise(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dos Cabezas(quadrangle 1:24,000 scale)

Willcox(quadrangle 1:100,000 scale)

Silver City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Willcox Playa(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management AZ)

Bureau of Land Management AZ BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Arizona Cochise

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 014S 027E 21 Arizona

Comments on the location information

  • SE 1/4 SEC 21 UTM EST

Commodities

Commodity Importance
Gold Primary
Lead Primary
Silver Primary
Copper Primary

Materials information

Materials Type of material
Gold Ore
Lead Ore
Silver Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -109.58787, 32.20012
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Quartz Monzonite In Fault Contact With Cretaceous Sediments To North
Type of structure Local
Structure description Faulting And Shearing Throughout Quartz Monzonite Body

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Cross Cutting Fault

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Mascot District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Cochran, E. E.
    First year 1935

Comments on the production information

  • CONSIDERABLE GOLD ORE PRODUCED IN THE 1880'S AND ABOUT 50 TONS IN 1935

Comments on the workings information

  • SMALL TUNNEL WORKINGS

Reference information

Bibliographic references

  • Deposit

    KEITH, S B, 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P 62

  • Production

    KEITH, 1973, ARIZ BUR OF MINES BULL 187.

General comments

Subject category Comment text
Deposit ORE IN A CROSSCUTTING FAULT IN GRANITE, ASSOCIATED WITH A DIABASE DIKE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1980 Zigler, Jan L. U.S. Geological Survey
Updater 01-NOV-1981 Gest, Don E. U.S. Geological Survey

Beyond USGS

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

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.