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Cobb & Dunaway Group

Past Producer in Gila county in Arizona, United States with commodities Asbestos, Manganese
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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. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10027407
MRDS ID M003038
Record type Site
Current site name Cobb & Dunaway Group

Geographic coordinates

Geographic coordinates: -110.49847, 33.78064 (WGS84)
Elevation 1433
Relative position 1 1/2 MI. E OF THE SENECA (ACCIDENT) GROUP

Site location context

Political divisions (FIPS codes)

Gila(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Beckers Butte(quadrangle 1:24,000 scale)

Seneca(quadrangle 1:100,000 scale)

Mesa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Salt(hydrologic unit)

Salt(hydrologic accounting unit)

Salt(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

BIA(Federal land areas administered by BIA)

Geographic areas

Country State County
United States Arizona Gila

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 004N 018E 20 Arizona

Comments on the location information

  • LOCATED ON THE SAN CARLOS INDIAN RESERVATION UNSURVEYED

Commodities

Commodity Importance
Asbestos Primary
Manganese Critical Tertiary

Materials information

Materials Type of material
Chrysotile Ore
Magnetite Ore

Analytical data

Result 1/2 TO 1 IN., SEMI-HARSH TO GOOD QUALITY

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -110.49847, 33.78064
ListMap

Economic information

Ore body information

  • General form LINEAR
    Strike N 60 W
    Dip 15 NE

Economic information about the deposit and operations

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

Comments on the production information

  • A FEW SMALL SHIPMENTS OF ASBESTOS WERE MADE IN 1921

Workings at the site

  • Type of workings Underground
    Length 18.29M

Comments on the workings information

  • WORKING CONSIST OF AN ADIT, WITH TWO SHORT LEFT-HAND BRANCHES.

Reference information

Bibliographic references

  • Deposit

    WILSON, E. D.; 1928 ; ASBESTOS DEPOSITS OF ARIZONA: ABM BULLETIN 126 , P. 60

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1979 Hall, R. K. (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.