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  3. Mineral Resource Data System (MRDS)

Cara Vaca Mine

Producer in Pima county in Arizona, United States with commodities Gold, Silver
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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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Production statistics
  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 10108957
MRDS ID M000002
Record type Site
Current site name Cara Vaca Mine
Alternate or previous names Knight
Related records 10186435

Geographic coordinates

Geographic coordinates: -112.19878, 32.18039 (WGS84)
Elevation 792
Relative position 44 MILES BY ROAD E OF AJO ALONG STATE HIWAY 89

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Maish Vaya(quadrangle 1:24,000 scale)

Ajo(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 Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 014S 002E 29 Arizona

Comments on the location information

  • CENTER OF SECTION 29 . PAPAGO INDIAN RESERVATION

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Silver Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -112.19878, 32.18039
ListMap

Economic information

Ore body information

  • General form STRINGERS
    Strike N-S
    Dip 30W

Controls for ore emplacement

  • Gold And Silver Enriched Along Fracture Zone

Comments on the geologic information

  • DEPOSIT IS LOCATED BETWEEN A LIMESTONE OUTCROP AND A GABBRO DIKE, N-S, 30W

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1880
Year of last production 1940

Production statistics

  • Year 1889
    Period 1880 - 1889
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^0.5 Oz Au/Ton, 0.5 Oz Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Silver Silver 16g/mt
    Ore Gold Gold 16g/mt

Comments on the production information

  • 60 - 100 TONS PRODUCED DURING 1880'S.

Workings at the site

  • Type of workings Underground
    Length 30.48M

Comments on the workings information

  • SHALLOW SHAFT WORKINGS. , INCLINED SHAFT

Reference information

Bibliographic references

  • Deposit

    KEITH, S. B., 1974 , INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189 , P. 140 .

  • Deposit

    ARIZONA DEPT OF MINERAL RESOURCES FILE DATA

  • Production

    ABM BULLETIN 189 , P. 140 .

General comments

Subject category Comment text
Deposit AREA OF MINERALIZATION APPROXIMATELY 20 FT ACROSS, VEIN PRESENT IS 5 FT IN WIDTH, AND CONTAINS MOST OF THE GOLD

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey
Updater 01-OCT-1981 Gest, Don E. 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.