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Pioneer Mine

Past Producer in Mohave county in Arizona, United States with commodities Gold, Silver, Lead, Molybdenum
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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. Production statistics
  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 10027915
MRDS ID M004486
Record type Site
Current site name Pioneer Mine
Alternate or previous names Pioneer Vein, German-American Vein, Treadwell Group
Related records 10186545

Geographic coordinates

Geographic coordinates: -114.40747, 35.01863 (WGS84)
Relative position 1.5 MI SW OF OATMAN, 1.25 MI SE OF LELAND BUTTE

Site location context

Political divisions (FIPS codes)

Mohave(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Oatman(quadrangle 1:24,000 scale)

Davis Dam(quadrangle 1:100,000 scale)

Kingman(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Havasu-Mohave Lakes(hydrologic unit)

Lower Colorado(hydrologic accounting unit)

Lower Colorado(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Mohave

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 019N 020W 21 E2 Arizona

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Secondary
Molybdenum Tertiary

Materials information

Materials Type of material
Gold Ore
Wulfenite Ore
Quartz Gangue

Alteration

  • (Local) Silicified

Analytical data

Result $40/T AU IN 1931

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Trachyte
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) -114.40747, 35.01863
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Nnw To Wnw Trending Vein And Fault System In Tert Volcanic Rocks
Type of structure Local
Structure description Nnw Fault Cutting Across Nw Fissure Zone Of Leland-Gold Dust-Bound Ary Cove Veins

Ore body information

  • Strike N13W
    Dip 85E
    Length 1609.3M
    Width 18.29M
    Depth to top 0M
    Depth to bottom 121.92M

Controls for ore emplacement

  • Hanging Wall Of Vein, Vein Follows Contact Of Trachite On W And And Esite On E

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1896
Year of first production 1896

Mining district

District name Oatman District

Land status

Ownership category Private

Production statistics

  • Year 1942
    Period 1934-1942
    Material PB
    Accuracy Estimate
    Description Cp_Grade: ^0.007% Pb
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Lead Lead 0g/mt
  • Year 1942
    Period 1934-1942
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^0.007% Pb, 0.33 Oz/T Au, 0.25 Oz/T Ag
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Ore Silver Silver 7g/mt
    Major Ore Gold Gold 9g/mt
    Ore Lead Lead 0wt-pct

Comments on the reserve resource information

  • ALL ORE BODIES WERE EXHAUSTED ABOVE THE 400 FT LEVEL; THE ORE WAS C UT OFF BY A FAULT

Workings at the site

  • Type of workings Underground
    Length 1066.8M
    Overall depth 128.02M

Comments on the workings information

  • THERE WERE 3 SHAFTS IN 1923. TOPO MAP SHOWS 16 SHAFTS ALONG VEIN

Reference information

Bibliographic references

  • Deposit

    GARDNER, 1936, USBM IC 6901, P. 36

  • Deposit

    SCHRADER, 1909, USGS BULL 397, P. 186

  • Deposit

    LAUSEN, 1931, ABM BULL 131, P. 109

  • Deposit

    RANSOME, 1923, USGS BULL 743

  • Production

    SCHRADER, 1909, P. 187; USBM IC 6901

  • Reserve-Resource

    RANSOME, 1923

General comments

Subject category Comment text
Deposit THIS REPORT REPRESENTS A MERGER OF ORIGINAL RECORD M004486 WITH RE CORD M030384 OF JAN WILT IN MOLYBDENUM FILE; CONTACT PERSON T.G. THEOD ORE, USGS ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit SEVERAL SMALL ORE BODIES WERE MINED TOWARDS THE SOUTH END OF THE PIONEER VEIN: THE LARGEST WAS 400 FT LONG, 3.5 FT WIDE, THE ORE SHOOT STOPPED JUST ABOVE THE 400 FT LEVEL, ASSAYED UP TO $35/T; A SMALLER SH OOT ABOUT 200 FT LONG, 3 FT WIDE OCCURRED NEAR THE SURFACE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1983 Peterson, Jocelyn A. 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.