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Mount Union Mine

Producer in Yavapai county in Arizona, United States with commodities Gold, Lead, Copper, Silver, Zinc
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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. 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. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. Reporter information

Geologic information

Identification information

Deposit ID 10027885
MRDS ID M004342
Record type Site
Current site name Mount Union Mine
Related records 10161917

Geographic coordinates

Geographic coordinates: -112.41518, 34.40449 (WGS84)
Elevation 2195
Relative position 4 1/2 MILES SSW OF GROOM CREEK

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)

Hassayampa(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 012N 002W 01,12 SE OF SE (01); NE OF NE (12) Arizona

Commodities

Commodity Importance
Gold Primary
Lead Primary
Copper Secondary
Silver Secondary
Zinc Critical Secondary

Comments on the commodity information

  • GOLD DIFFICULT TO AMALGAMATE

Materials information

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

Alteration

  • (Local) None

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Proterozoic
    Chronological age 1760
    Dating method U-Pb (zircon)
    Type of media Zircon
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -112.41518, 34.40449
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Foliation In Precambrian Rocks Trends N35e To N45e
Type of structure Local
Structure description Dikes And Veins Parallel Foliation

Ore body information

  • General form TABULAR
    Width 3.05M

Controls for ore emplacement

  • Faulting, Shearing

Comments on the geologic information

  • DEPOSIT IS VEIN WHICH CUTS PRECAMBRIAN GRANODIORITE. RHYOLITE PORPHYRY DIKES OF PROBABLE CRET-TERT AGE ASSOCIATED WITH VEINS

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Mount Union District

Land status

Ownership category National Forest

Comments on the production information

  • ITEM ( 8 ) IS ESTIMATED FROM $ 125,000 PRODUCTION AT $ 20.67 PER OUNCE.

Workings at the site

  • Type of workings Underground
    Length 365.76M
    Overall depth 243.84M

Reference information

Bibliographic references

  • Deposit

    USGS BULL 782, P. 125

  • Deposit

    ELSING, M.J. AND HEINEMAN, R.E., 1936 , ARIZONA METAL PRODUCTION: ARIZONA BUREAU OF MINES BULLETIN 140 , P. 101

  • Deposit

    ABGMT AND ADMR FILE DATA

  • Production

    A.B.M. BULLETIN 140 , P. 101 .

Reporter information

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