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Union Mine

Past Producer in Yavapai county in Arizona, United States with commodities Gold, Lead, Zinc, Arsenic
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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. 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 10098702
MRDS ID M800198
Record type Site
Current site name Union Mine
Alternate or previous names Union-Jessie, Jessie Mine
Related records 10283625

Geographic coordinates

Geographic coordinates: -112.31046, 34.47977 (WGS84)
Elevation 1695
Relative position 3.0 MILES NORTHWEST OF POLAND JUNCTION, ARIZONA

Site location context

Political divisions (FIPS codes)

Yavapai(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Poland Junction(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 001 25 NE OF SE Arizona

Comments on the location information

  • LITTLE JESSIE MINE IS SEPARATE FROM UNION (JESSIE) MINE AND IS 1700 FEET SOUTH-SOUTHEAST OF THE UNION MINE. UTM COORDINATES TO MAIN SHAFT (NOT SHOWN ON 7 1/2' TOPO MAP) OF UNION. A CROSSCUT TUNNEL TRENDS NNW AND CROSSES THE MAIN WORKINGS WITH ITS MOUTHS ON THE ARIZONA CLAIM TO THE NORTH AND THE INDEPENDENCE CLAIM TO THE SOUTH. THE TUNNEL IS APPROXIMATELY 1800 FT LONG.

Commodities

Commodity Importance
Gold Primary
Lead Secondary
Zinc Critical Secondary
Arsenic Critical Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Sphalerite Ore

Alteration

  • (Local) None

Analytical data

Result PROBABLE PRODUCTION OF $800,000 OF GOLD. GOLD ASSOCIATED WITH SULFIDE MINERALS

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Tertiary
    Stratigraphic age (oldest) Late Cretaceous
    Chronological age 74
    Dating method K-Ar
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Tertiary
    Stratigraphic age (oldest) Late Cretaceous
    Chronological age 74
    Dating method K-Ar

Economic information

Geologic structures

Type of structure Regional
Structure description Foliation In Precambrian Country Rocks Trends N25e
Type of structure Local
Structure description Veins Tend To Parallel Foliation

Ore body information

  • General form TABULAR
    Strike N70E
    Dip 80 SOUTHEAST
    Thickness 6.1M
    Length 381M
    Width 201.17M
    Depth to bottom 201.17M

Controls for ore emplacement

  • Faulting, Shearing

Comments on the geologic information

  • DEPOSIT IS VEIN AND/OR DIKE-VEIN OF RHYOLITE PORPHYRY WHICH CUTS GRANODIORITE PLUTON.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1897
Year of first production 1895

Mining district

District name Ticonderoga District

Ownership information

  • Type Operator
    Owner Arizona Consolidated Mining Co.
    First year 1930

Workings at the site

  • Type of workings Unknown
    Area 0.149HA
    Length 1828.8M
    Overall depth 201.17M
    Overall length 259.08M
    Overall width 6.1M

Comments on the workings information

  • 1800 FT LONG ADIT ORIENTED N S. MAIN WORKINGS ORIENTED NE-SW

Comments on development

  • THE MAIN WORKINGS OF THE UNION MINE ARE ON THE UNION UNPATENTED CLAIM. PART OF THE UNION MINES PRODUCTION MAY HAVE BEEN RECORDED WITH THE LITTLE JESSIE. NO USBM-ABGMT PRODUCTION DATA

Reference information

Bibliographic references

  • Deposit

    USGS BULL 782, P. 133-134

  • Deposit

    USBM I.C. 6905, P. 49

  • Deposit

    ABM BULL 137, P. 37

  • Deposit

    ABGMT CLIPPINGS FILE

General comments

Subject category Comment text
Deposit BASIC DIKE INTRUDES ALONG QUARTZ VEIN. TWO MAIN VEINS APPEAR IN WORKINGS: UNION VEIN (SOUTHEAST) AND BLAINE VEIN (NORTHWEST). BLAINE STRIKES N50E, 75 NW AND MAY BE YOUNGER THAN UNION VEIN
Deposit Discovery Year: LATE 1890'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1981 Dewitt, Ed H. 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.