1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Shea Mine

Past Producer in Yavapai county in Arizona, United States with commodities Silver, Copper, Gold, Barium-Barite, Arsenic, Lead
Map
XML
JSON
KML
B
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. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10102465
MRDS ID M002687
Record type Site
Current site name Shea Mine
Related records 10234487

Geographic coordinates

Geographic coordinates: -112.09213, 34.7006 (WGS84)
Elevation 1676
Relative position 5 MILES SW OF COTTONWOOD.

Site location context

Political divisions (FIPS codes)

Yavapai(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cottonwood(quadrangle 1:24,000 scale)

Prescott(quadrangle 1:100,000 scale)

Prescott(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Verde(hydrologic unit)

Verde(hydrologic accounting unit)

Salt(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 015N 02E 12 NW Arizona

Comments on the location information

  • LOCATION GIVEN IS FOR ADIT SYMBOL ON MAP; TUNNEL CONNECTS ADIT TO SHAFT DIRECTLY WESTWARD; SHAFT IS PROBABLY MISLABELED ON MAP.

Commodities

Commodity Importance
Silver Primary
Copper Secondary
Gold Secondary
Barium-Barite Critical Tertiary
Arsenic Critical Tertiary
Lead Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Silver Ore
Tetrahedrite Ore
Calcite Gangue
Quartz Gangue
Pyrite Unknown

Alteration

  • (Local) Minor Chlorite, Sericite In Country Rocks

Analytical data

Result TETRAHEDRITE CARRIES 600 OZ. AG/TON

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Meta-Basalt
    Rock unit name Shea Basalt;
    Rock description Shea Basalt;
    Stratigraphic age (youngest) Proterozoic
    Chronological age 1760
    Dating method U-Pb (zircon)
    Type of media Zircon

Nearby scientific data

(1) -112.09213, 34.7006
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Foliation In Shea Basalt Trends N65e To N80e
Type of structure Local
Structure description Vein Trends E-W And Crosscuts Foliation In Precambrian Rocks

Ore body information

  • General form TABULAR
    Strike E
    Dip 42 S
    Length 1036.32M
    Width 1.52M

Controls for ore emplacement

  • Faulting, Shearing

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Year of first production 1918
Year of last production 1941

Mining district

District name Shea District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Ed Starkey
    First year 1941
  • Type Owner
    Owner Phelps Dodge Corp.
    First year 1958

Comments on the production information

  • ITEM (8) IS SHIPPING ORE YIELDING AG, CU, AU; 80% AG.

Workings at the site

  • Type of workings Underground
    Length 2133.6M
    Overall depth 251.46M

Comments on the workings information

  • INCLINED SHAFT, 1220 FT ON THE INCLINE OR 825 FT VERTICALLY

Comments on development

  • CLAIMS ORIGINALLY KNOWN AS PATTERSON GROUP AND INCLUDED MARY ELLEN, CLARK, MEDGEN, EAST GOLD REEF; IN 1922, SHEA COPPER CO, AT THAT TIME THE OWNER OF SHEA MINE, BOUGHT OUT THE NEIGHBORING GRAND ISLAND MINE AND CONTINUED THE SHEA TUNNEL TOWARD THE GRAND ISLAND VEIN

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit DEPOSIT IS QUARTZ VEIN WHICH CROSSCUTS PRECAMBRIAN IGNEOUS AND METAVOLCANIC ROCKS.
Deposit MINING WAS LIMITED TO ONE LOCALITY ON THE 300 - LEVEL, FROM 300 - 400 FEET W OF THE SHAFT. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 Gere, W. U.S. Geological Survey
Updater 01-MAR-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey
Updater 01-JAN-1982 Roth, Frances A. (Dewitt, Ed) U.S. Geological Survey
Updater 01-MAY-1995 Orris, Greta J. U.S. Geological Survey

Beyond USGS

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

Operator history (post-MRDS)

MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:

  • Phelps Dodge Corp. — acquired by Subsidiary of Freeport-McMoRan (2007)
    Acquired by Freeport-McMoRan Copper & Gold in 2007 in what was then the largest mining-industry deal ever (~US$26 B).

Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.

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.