Cornucopia Mine

Past Producer in Yavapai county in Arizona, United States with commodities Silver, Gold, Copper
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10048233
MRDS ID M800333
Record type Site
Current site name Cornucopia Mine

Geographic coordinates

Geographic coordinates: -112.4113, 34.48227 (WGS84)
Elevation 2073
Relative position 1.3 MILES N-NW OF SPRUCE MOUNTAIN LOOKOUT TOWER

Site location context

Political divisions (FIPS codes)

Yavapai(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Groom Creek(quadrangle 1:24,000 scale)

Bradshaw Mountains(quadrangle 1:100,000 scale)

Prescott(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Agua Fria(hydrologic unit)

Lower Gila-Agua Fria(hydrologic accounting unit)

Lower Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Prescott National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Arizona Yavapai

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 013N;013N 002W;001W 25,24,30 E2 OF NE OF NE (25); SE OF SE OF SE (24); W2 OF SW OF NW (30) Arizona

Commodities

Commodity Importance
Silver Primary
Gold Primary
Copper Secondary

Materials information

Materials Type of material
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Minor

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Paleoproterozoic
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Rock unit name Green Gulch Volcanics
    Rock description Green Gulch Volcanics
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Meta-Basalt
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -112.4113, 34.48227

Economic information

Geologic structures

Type of structure Regional
Structure description Foliation In Precambrain Rocks Trends N10e To N20e
Type of structure Local
Structure description Veins Parallel Foliation And Crosscut It By 10-20 Degrees, Trending N20e To N-S

Ore body information

  • General form TABULAR
    Strike NNW
    Dip STEEP

Controls for ore emplacement

  • Faulting, Igneous Activity, Especially Dike Emplacement

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1902
Year of last production 1941

Mining district

District name Groom Creek District

Ownership information

  • Type Operator
    Owner George French , O. W. Walker And W. G. Ghofawger
    First year 1937
  • Type Owner
    Owner J. I. Gardner
    First year 1936

Workings at the site

  • Type of workings Underground
    Length 45.72M
    Overall depth 15.24M

Comments on the workings information

  • SHAFT SUNK 50 FEET AND A 150 FOOT TUNNEL HAS BEEN RUN (1935)

Comments on development

  • 1 PATENTED CLAIM

Reference information

Bibliographic references

  • Deposit

    USBM-ABGMT FILE DATA.

  • Deposit

    ABGMT CLIPPINGS FILE DATA.

  • Deposit

    BLM DISTRICT SHEET #248.

  • Deposit

    USGS GQ MAP GQ 997.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit DEPOSIT IS QUARTZ VEIN WHITCH CUTS PROTEROZOIC ROCKS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1981 Laraba, Peter (Dewitt, Ed) Arizona Bureau of Geology and Mineral Technology

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.