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Postmaster Mine

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

Geologic information

Identification information

Deposit ID 10048179
MRDS ID M800236
Record type Site
Current site name Postmaster Mine
Related records 10283574

Geographic coordinates

Geographic coordinates: -112.34602, 34.45283 (WGS84)
Elevation 1896
Location accuracy 1000(meters)
Relative position 4.4 MILES DUE WEST OF POLAND JUNCTION, ARIZONA, Utm Approximate

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 12N 001W 22 SE OF NE Arizona

Comments on the location information

  • USGS BULL 1336 USED FOR LOCATION. POSTMASTER ASSUMED TO NOT BE EQUAL TO NEW ERA OR MERCHANTS HOME, ALTHOUGH LOCATED NEAR THEM.

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) None

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Stratigraphic age (youngest) Proterozoic
    Chronological age 1720
    Dating method U-Pb (zircon)
    Type of media Zircon
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Lower Unit Spud Mountain Volcanics
    Rock description Lower Unit Spud Mountain Volcanics
    Stratigraphic age (youngest) Proterozoic
    Chronological age 1720
    Dating method U-Pb (zircon)
    Type of media Zircon
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff
    Stratigraphic age (youngest) Proterozoic
    Chronological age 1720
    Dating method U-Pb (zircon)
    Type of media Zircon
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Lower Unit Spud Mountain Volcanics
    Rock description Lower Unit Spud Mountain Volcanics
    Stratigraphic age (youngest) Proterozoic
    Chronological age 1720
    Dating method U-Pb (zircon)
    Type of media Zircon

Nearby scientific data

(1) -112.34602, 34.45283
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Foliation In Precambrian Rocks Trends N25e
Type of structure Local
Structure description Veins Parallel Foliation For Most Part

Ore body information

  • General form TABULAR
    Strike N50E
    Dip STEEP
    Thickness 1.83M
    Depth to bottom 144.78M

Controls for ore emplacement

  • Faulting, Shearing

Comments on the geologic information

  • DEPOSIT IS VEIN WHICH CUTS PRECAMBRIAN METAVOLCANIC ROCKS.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1902
Year of last production 1942

Mining district

District name Ticonderoga District

Ownership information

  • Type Owner
    Owner D. W. Ingram, L. M. White
    First year 1941

Workings at the site

  • Type of workings Underground
    Length 2800M
    Overall depth 144.78M

Comments on the workings information

  • LEVELS INCLUDE MAIN, 200, 375, 475 FT. SHAFT EXTENDS 75 FT BELOW CROSSCUT LEVEL. 1100 FT CROSSCUT AT LOW LEVEL IN MINE CONNECTS ORIGINAL WORKINGS

Reference information

Bibliographic references

  • Deposit

    USGS GEOL. MAP GQ 997

  • Deposit

    USGS BULL B-1336, PLATE 1

  • Deposit

    USBM-ABGMT FILE DATA

  • Deposit

    USGS BULL 782, P. 135

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-81 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.