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  3. Mineral Resource Data System (MRDS)

Antietam Mine

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

Geologic information

Identification information

Deposit ID 10026951
MRDS ID M001269
Record type Site
Current site name Antietam Mine
Alternate or previous names Boulder Claim, Shannon Property, Antietam Claim, Leo C Claim

Geographic coordinates

Geographic coordinates: -109.34759, 33.13316 (WGS84)
Elevation 1603
Relative position 6 MILES NNW OF CLIFTON

Site location context

Political divisions (FIPS codes)

Greenlee(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mitchell Peak(quadrangle 1:24,000 scale)

Clifton(quadrangle 1:100,000 scale)

Clifton(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Francisco(hydrologic unit)

Upper Gila(hydrologic accounting unit)

Upper Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Greenlee

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 003S 029E 34 SE OF NW Arizona

Comments on the location information

  • LOCATED IN KING GULCH; 1.0 MILE NE OF SHANNON MOUNTAIN. ; INFO FROM LAND.ST :(1973)

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Copper Ore
Cuprite Ore
Pyrite Ore

Alteration

  • (Local) Extensive Surface Oxidation To Unknown Depths

Analytical data

Result 4 % CU, $8 AU/TON, 5 OZ. AG/TON

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Morenci Granite Porphyry;Precambrian Granite Basement
    Rock description Morenci Granite Porphyry;Precambrian Granite Basement
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -109.34759, 33.13316
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Ne Trending Narrow Porphyry Dikes In Vicinity; Veins In Region Consist Of Many Very Sharply Defined Fissure Planes Striking Nne
Type of structure Local
Structure description Adjacent To Morenci Quartz Monzonite Porphyry Intrusion; Porphyry Is Fragmented By Masses Of Quartzite, Limestone, And Shale

Ore body information

  • General form IRREGULAR
    Strike NS
    Dip 90
    Length 1609.3M
    Width 12.19M
    Depth to top 0M

Controls for ore emplacement

  • N-S Trending Fissure Vein In Granite Basement

Comments on the geologic information

  • ORES CONSIST CHIEFLY OF CHALCOPYRITE AND PYRITE IN ALTERED GRANITE; VEIN CONTINUES NORTHWARD ONTO THE BOULDER CLAIM (PROPERTY FORMERLY OF ARIZONA COPPER CO. LTD) AND SOUTHWARD ONTO THE OLD SHANNON COPPER CO PROPERTY.

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 1903

Mining district

District name Copper Mountain District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Phelps Dodge Corp., Morenci Branch

Workings at the site

  • Type of workings Underground
    Overall depth 15.24M

Comments on the workings information

  • DEVELOPMENTS INCLUDED A 2-COMPARTMENT SHAFT TO DEPTH OF 140 FT; TRAMLINE FROM MINE TO THE SHANNON RAILWAY.

Comments on development

  • OPERATORS INCLUDED P.F. CROWLEY; 2 PATENTED CLAIMS ARE ANTIETAM AND LEO C.; OWNERS INCLUDED THE DETROIT COPPER MININC CO OF ARIZONA; NEW ENGLAND AND CLIFTON COPPER MINES CO.

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 Johnson, Kris H. (Creasey, S.C.) U.S. Geological Survey
Updater 01-DEC-1981 Calder, Susan R. 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.