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  3. Mineral Resource Data System (MRDS)

Greenback Mine

Producer in Pinal county in Arizona, United States with commodities Gold, 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. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10109774
MRDS ID M241171
Record type Site
Current site name Greenback Mine
Related records 10210919

Geographic coordinates

Geographic coordinates: -112.16322, 32.51788 (WGS84)
Elevation 663
Relative position ABOUT 2 MILES SOUTHEAST OF CATHEDRAL ROCK

Site location context

Political divisions (FIPS codes)

Pinal(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Copperosity Hills(quadrangle 1:24,000 scale)

Gila Bend(quadrangle 1:100,000 scale)

Ajo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Santa Rosa Wash(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

BIA(Federal land areas administered by BIA)

Geographic areas

Country State County
United States Arizona Pinal

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 010S 002E 33 NW Arizona

Comments on the location information

  • LOCATED ON THE NORTH SLOPE OF THE CIMARRON MOUNTAINS

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Secondary

Materials information

Materials Type of material
Chrysocolla Ore
Gold Ore
Malachite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Rock unit name Dacite
    Rock description Dacite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Rock unit name Pinal Schist
    Rock description Pinal Schist

Nearby scientific data

(1) -112.16322, 32.51788
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Nw And Ne Trending Fault Zones, E-W Trending Fault Zones
Type of structure Local
Structure description E-W Trending Fault Zone Through Mine. 2 Parallel Nw Trending Faults 1/3 Mile Sw Of Mine

Ore body information

  • General form LENSES
    Strike N70E AND N70W
    Dip 45 TO 50 S
    Thickness 0.91M

Controls for ore emplacement

  • E-W Trending Faults Zones

Comments on the geologic information

  • IN TERTIARY VOLCANIC ROCKS, YOUNGER MINERALIZATION THAN IN VEKOL DISTRICT AND COPPEROSITY MINE TO THE NE.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1895
Year of first production 1939
Year of last production 1940

Workings at the site

  • Type of workings Underground
    Length 335.28M
    Overall depth 209.7M

Comments on the workings information

  • WORKINGS INCLUDE PINAL SHAFT (688 FT DEEP ON A 50 DEGREE INCLINE), GREEN BACK SHAFT (100 FT DEEP ON A 40 DEGREE INCLINE)

Comments on development

  • PREVIOUS OWNERS/OPERATORS INCLUDE HUMPHREY (1916), PAUL HINSHAW (1917-1919), PINAL GRANDE MINING CO (PAUL HINSHAW) (1919-1924), GREENBACK GOLD MINING CO. (PAUL HINSHAW AND FRANK ROYER) (1924-1926), WESLEY OATES (1932), FRANK M. LEONARD (1932-?), RAMON ANDRADE (1939-40); ADDITIONAL CLAIMS WERE ADDED TO THE ORIGINAL 10 LOCATED IN 1916 INCLUDING 17 CLAIMS IN 1917, GREENBACK GROUP OF 20 CLAIMS IN 1918, SILVER QUEEN GROUP (VINDICATOR GOLD MINING PROPERTY) IN 1921

Reference information

Bibliographic references

  • Deposit

    ABGMT CLIPPINGS FILES

  • Deposit

    ABGMT-USBM FILE DATA

  • Deposit

    ADMR FILE DATA

  • Deposit

    USGS MF-931

  • Deposit

    TENNEY, JAMES, HISTORY OF MINING IN AZ 1927-29, P. 340-342

  • Deposit

    TENNEY, J.B., ECONOMIC GEOLOGICAL RECONNAISSANCE OF CASA GRANDE MINING DISTRICT, AZ BUREAU OF MINES, 1934

General comments

Subject category Comment text
Deposit Discovery Year: 1890'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1982 Roth, Frances A. (Gest, Don E.) Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

External references

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.