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Oro Grande Mine

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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Production statistics
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10109010
MRDS ID M002271
Record type Site
Current site name Oro Grande Mine
Related records 10186353

Geographic coordinates

Geographic coordinates: -112.11294, 32.39482 (WGS84)
Elevation 732
Relative position 6 1/2 MILES NW OF GU ACHI

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Drew Spring Well(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 012S 003E 07 Arizona

Comments on the location information

  • W CENTER SECTION 7 . PAPAGO INDIAN RESERVATION

Commodities

Commodity Importance
Copper Primary
Silver Primary
Gold Primary

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -112.11294, 32.39482
ListMap

Economic information

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Production statistics

  • Year 1924
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^4 % Cu, 3.5 Oz. Au/Ton, 8 Oz. Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 111g/mt
    Ore Copper Copper 4wt-pct
    Ore Silver Silver 253g/mt

Comments on the production information

  • A "FEW TONS" SHIPPED IN 1924 .

Comments on the workings information

  • SHALLOW SHAFTS AND PITS.

Reference information

Bibliographic references

  • Deposit

    KEITH, S. B., 1974 , INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189 , P. 115

  • Production

    ABM BULLETIN 189 , P. 115 .

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-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.

External references

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.