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  3. Mineral Resource Data System (MRDS)

Three C Ranch Mine

Producer in Pinal county in Arizona, United States with commodities Copper, Lead, 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. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10046289
MRDS ID M241185
Record type Site
Current site name Three C Ranch Mine
Alternate or previous names Mary West

Geographic coordinates

Geographic coordinates: -110.74207, 32.53344 (WGS84)
Elevation 1634
Location accuracy 100(meters)
Relative position 1 1/2 MILE NNE OF RICE PEAK. IN SOUTH FORK OF PEPPER SAUCE WASH

Site location context

Political divisions (FIPS codes)

Pinal(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Campo Bonito(quadrangle 1:24,000 scale)

Mammoth(quadrangle 1:100,000 scale)

Tucson(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower San Pedro(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado 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 Pinal

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 010S 016E 30 NE OF SE Arizona

Comments on the location information

  • USBM GIVES LOCATION FOR THREE C RANCH MINE IN SECTION 27, 3 MILES EAST OF MARY WEST MINE LOCATED ON MAMMOTH QUADRANGLE. CAMPO BONITO QUADRANGLE HAS NO MINE IN EITHER LOCATION. ; INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Copper Primary
Lead Primary
Silver Secondary
Gold Secondary

Materials information

Materials Type of material
Galena Ore
Feldspar Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Rock unit name Pioneer Formation
    Rock description Pioneer Formation
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite

Nearby scientific data

(1) -110.74207, 32.53344
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Bodies Of Lcret Granodiorite Intruded Into Folded And Faulted Precambrian Sediments And Diabase, And Cambrian Sediments. Nw And N Trending Faults Throughout District
Type of structure Local
Structure description Nw Trending Pioneer Formation Beds, Dip 30-35 Ne

Ore body information

  • General form LENS LIKE
    Width 1.22M

Controls for ore emplacement

  • Veins Near Slate-Quartzite Contact. Unclear If Igneous Porphyry Is Present At Vein

Comments on the geologic information

  • S.C. CREASEY IN USGS BULL 1218 STATES MINE IS IN PREC SEDIMENTS OF PIONEER FORMATION, HOWEVER L. BOYER IN ADMR FILE STATES MINE IS AT A QUARTZ MONZONITE-DIORITE CONTACT. IT IS POSSIBLE THAT THESE REPORTS DESCRIBE DIFFERENT MINE AREAS ON MARY WEST'S EXTENSIVE CLAIM BLOCK. MINERALIZATION IS ASSOCIATED WITH LCRET-TERT PORPHYRITIC INTRUSION. THESE LCRET-TERT ROCKS ARE EXPOSED ABOUT 1/2 MILE S OF MINE IN A LARGE POD

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1955

Mining district

District name Oracle District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner West, Mary
    First year 1958

Comments on the workings information

  • 1 INCLINE SHAFT, 30 DEGREE DIP, 311 FT DEEP STOPING AT 160 FT

Comments on development

  • JOE NAVARRO OPERATED IN 1957. MARY WEST HAS HUNDREDS OF CLAIMS IN THE AREA. ONE ADMR REPORT SAYS 400, ANOTHER 800. LEE BOYER MILL SUPERINTENDENT, 1959

Reference information

Bibliographic references

  • Deposit

    USGS BULLETIN 1218, 1967

  • Deposit

    ADMR THREE C RANCH MINE AND MILL FILE

  • Deposit

    ABGMT-USBM FILE DATA

  • Deposit

    USBM FILE, CLUSTER #465

General comments

Subject category Comment text
Deposit VEINS 3-4 FT WIDE. VEIN WIDENS TO LENS LIKE BODIES OF ORE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-82 Gest, Don E. Arizona Bureau of Geology and Mineral Technology

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.