Picacho Mine

Producer in Pima county in Arizona, United States with commodities Silver, Gold, Copper, Lead, Zinc

Geologic information

Identification information

Deposit ID 10109619
MRDS ID M050620
Record type Site
Current site name Picacho Mine
Alternate or previous names Cahuabi, Cababi
Related records 10283212

Geographic coordinates

Geographic coordinates: -111.94765, 32.0565 (WGS84)
Elevation 754
Relative position 9 1/2 MILES W OF COMOBABI
(click for info)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 016S 004E 03 Arizona

Comments on the location information

  • SW 1/4 SECTION 3 . PAPAGO INDIAN RESERVATION.

Commodities

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

Comments on the commodity information

  • SULPHIDES ASSOCIATED WITH QUARTZ NOT CARBONATES

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Pyrite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -111.94765, 32.0565

Geologic structures

Type of structure Local
Structure description Major Fault Zone

Ore body information

  • Strike N 70 E
    Dip 70 NW

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production <1850
Year of last production 1965

Production statistics

  • Year 1965
    Period 1850 - 1965
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^250 Oz Ag/Ton, 0.3 Oz Au/Ton, Minor Cu, Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Ore Silver Silver 7906g/mt
    Ore Gold Gold 9g/mt

Comments on the production information

  • WORKED PRIOR TO 1850'S SPORADICALLY TO 1960'S. PRODUCED AT LEAST 500 TONS.

Workings at the site

  • Type of workings Surface/Underground
    Length 304.8M
    Overall depth 182.88M

Comments on the workings information

  • SHAFT AND PIT OPERATIONS

Comments on development

  • OPERATORS INCLUDED PICACHO MINES INC., J.D. COFFMAN, ELDEN WILKERSON; 25 MEN EMPLOYED AS OF 1949

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M050620
U.S. Bureau of Mines Minerals Availability System MAS 0040190360

Bibliographic references

  • Deposit

    KEITH, S. B., 1974 , INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN, 189 , P. 112 .

  • Deposit

    MACKALLOR, JULES A., MS 1957 ; GEOLOGY OF THE WESTERN PART OF THE COBABI MINING DIST., PIMA CITY, ARIZ. 108 PGS.

  • Deposit

    ARIZONA DEPT OF MINERAL RESOURCES FILE DATA

  • Production

    ( 8 ) ABM BULLETIN 189 , P. 112 .

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1973 Johnson, Maureen G. U.S. Geological Survey
Updater 01-OCT-1981 Rodriguez, Ignacio J. (Gest, Don E.) U.S. Geological Survey