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Columbia Mine Group

Producer in Pima county in Arizona, United States with commodities Copper, Silver, Gold
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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. Ore body information
  11. Economic information about the deposit and operations
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10108976
MRDS ID M000688
Record type Site
Current site name Columbia Mine Group
Related records 10259127

Geographic coordinates

Geographic coordinates: -111.78821, 32.05844 (WGS84)
Elevation 953
Relative position AT COMOBABI

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Comobabi(quadrangle 1:24,000 scale)

Silver Bell Mountains(quadrangle 1:100,000 scale)

Tucson(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Simon Wash(hydrologic unit)

Rio Sonoyta(hydrologic accounting unit)

Sonora(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

BIA(Federal land areas administered by BIA)

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 005E 01 Arizona

Comments on the location information

  • LOCATION IS GENERAL FOR PLACER AREA
  • S CENTER SECTION 1 PAPAGO INDIAN RESERVATION

Commodities

Commodity Importance
Copper Primary
Silver Primary
Gold Secondary

Materials information

Materials Type of material
Chalcocite Ore
Copper Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -111.78821, 32.05844
ListMap

Economic information

Ore body information

  • General form IRREGULAR

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1907
Year of last production 1907

Comments on the production information

  • A SMALL AMOUNT OF ORE WAS PRODUCED IN 1907 THAT RAN 19% CU, 29 OZ/TON AG, AND 0.1 OZ/TON AU.

Comments on the workings information

  • TUNNEL WORKINGS

Comments on development

  • OPERATORS INCLUDED PAPAGO COPPER CO

Reference information

Bibliographic references

  • Deposit

    KEITH, S. B., 1974 , INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189 , P. 110

  • Production

    ABM BULLETIN 189 , P. 110 .

General comments

Subject category Comment text
Deposit MINOR CINNABAR IS PRESENT. GOLD THE SIZE OF MUSTARD SEED TO 0.15 OZ WAS COMMON; SEVERAL NUGGETS OF 0.73 OZ RECOVERED. SOURCE OF GOLD BELIEVED TO BE TOURMALINE-QUARTZ VEINS IN PRECAMBRIAN ROCK.
Deposit PLACERS ARE FOUND IN GULCHES THAT DISSECT THE PEDIMENT SLOPE ON THE SW FLANK OF THE SIERRA PRIETA AND IN THE GRAVEL-FLOORED PLAIN BETWEEN THIS PEDIMENT AND SKULL VALLEY. RICHEST PLACERS ARE ON THE GRAVEL-FLOORED PLAIN WEST AND SOUTH OF COPPER BASIN (T13N, R4W) ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Johnson, Kris H. (Creasey, S.C.) 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.