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Dos Cabezas Placers

Past Producer in Cochise county in Arizona, United States with commodity 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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10014838
MRDS ID D011818
Record type Site
Current site name Dos Cabezas Placers

Geographic coordinates

Geographic coordinates: -109.59648, 32.18345 (WGS84)

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)

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;013S;015S 027E;026E 27,28,29,32,33 Arizona

Comments on the location information

  • LOCATED NORTH AND NORTHEAST OF DOS CABEZAS.

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • GOLD FOUND IN NEARLY ALL THE CANYONS AROUND DOS CABEZAS.

Materials information

Materials Type of material
Gold Ore

Analytical data

Result SAMPLING OF GRAVELS TO A DEPTH OF 6 FT ASSAYED $4.08/CY ($35 OZ AU).

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Stratigraphic age (youngest) Pleistocene
  • Host or associated Host
    Rock type Unconsolidated Deposit > Alluvium

Nearby scientific data

(1) -109.59648, 32.18345
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1901
Year of last production 1947
Production years 1906-1914, 1934-1936

Mining district

District name Dos Cabezas District

Comments on the workings information

  • DRY PLACER USED DRYLAND DREDGE.

Comments on development

  • DISCOVERED IN 1901 AND OPERATED CHIEFLY AS DRY PLACERS UNTIL ABOUT 1947.

Reference information

Bibliographic references

  • Deposit

    WILSON, E.D., 1961, ABM BULL. 168, P. 69.

  • Deposit

    ORRIS, G.J., AND BLISS, J.D., 1985, GEOLOGIC AND GRADE-VOLUME DATA ON 330 GOLD PLACER DEPOSITS: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 85-213, 172 P.

  • Deposit

    JOHNSON, M.G., 1972, PLACER GOLD DEPOSITS OF ARIZONA: U.S. GEOLOGICAL SURVEY BULLETIN 1355, 103 P.

  • Other Database

    CIMRI

  • Production

    FIRST CUMULATIVE PRODUCTION FIGURE IS FROM WILSON, 1961; THE SECOND IS FROM JOHNSON, 1972.

  • Reserve-Resource

    ORRIS AND BLISS, 1985.

General comments

Subject category Comment text
Deposit ALLUVIUM IN SMALL STREAMS DRAINING AN AREA OF AU (AG-BASE METAL) VEIN DEPOSITS ALONG SOUTHWEST FLANK OF DOS CABEZAS. THE VEINS ARE ASSOCIATED WITH A MAJOR FAULT ZONE. GRAVELS EXTEND TO AT LEAST A DEPTH OF 6 FT AND ARE LOCATED IN GULCHES AND ON PEDIMENTS. THE GOLD IS USUALLY FLAT, RAGGED, AND COARSE. NUGGETS RANGED FROM 1 TO 20 OZ IN SIZE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1984 Seanor, Clint E. (Worl, Ron) U.S. Geological Survey
Updater 01-OCT-1992 Orris, Greta J. U.S. Geological Survey
Updater 18-APR-1995 Orris, Greta J. 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.