Old Baldy Copper Mine

Occurrence in Santa Cruz county in Arizona, United States with commodities Copper, Gold, Silver, Molybdenum, Lead, Iron
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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10037132
MRDS ID M030557
Record type Site
Current site name Old Baldy Copper Mine
Related records 10210494

Geographic coordinates

Geographic coordinates: -110.7604, 31.71624 (WGS84)
Elevation 1943
Relative position 1.5 MI N OF LITTLESHOT CAMP, AND 1/4 MI N OF LUCKY LEDGE MINE.

Site location context

Political divisions (FIPS codes)

Santa Cruz(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Wrightson(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rillito(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado 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 Santa Cruz

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 020S 014E 01 SW OF SW Arizona

Comments on the location information

  • INFO FROM LAND.ST :1979

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary
Molybdenum Secondary
Lead Secondary
Iron Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Gold Ore
Malachite Ore
Silver Ore
Biotite Gangue
Magnetite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
    Rock unit name Gardier Canyon Rhyolite Porphyry
    Rock description Gardier Canyon Rhyolite Porphyry
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Madera Canyon Granodiorite
    Rock description Madera Canyon Granodiorite

Nearby scientific data

(1) -110.7604, 31.71624

Economic information

Geologic structures

Type of structure Regional
Structure description Ne-Trending Box Canyon Dike Swarm
Type of structure Local
Structure description Granodiorite And Porphyry Are Sheeted Parallel To Vein

Ore body information

  • General form TABULAR, IRREGULAR, BANDS AND BUNCHES
    Dip 60SE
    Width 0.61M

Controls for ore emplacement

  • Ne Quartz Veins And Stringers Cutting Granodiorite; Ore Occurs In Narrow Bands And Bunches In Quartzitic Fissure Filling

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Old Baldy District

Land status

Ownership category National Forest
Area name Coronado National Forest

Workings at the site

  • Type of workings Underground
    Length 19.81M

Comments on the workings information

  • DRIFT

Comments on development

  • OWNERS INCLUDED LOUIS LITTLESHOT AND CO (1915)

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THIS REPORT WAS TAKEN FROM RECORD M030557 OF JAN WILT IN MOLYBDENUM FILE, CONTACT PERSON T.G. THEODORE, USGS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1983 Peterson, Jocelyn A. U.S. Geological Survey
Updater 01-MAY-1982 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.

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.