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Loma De Manganese Mine

Past Producer in Santa Cruz county in Arizona, United States with commodities Manganese, Copper, 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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  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 10039539
MRDS ID M050244
Record type Site
Current site name Loma De Manganese Mine
Related records 10113319

Geographic coordinates

Geographic coordinates: -111.26958, 31.44957 (WGS84)
Elevation 1341
Relative position ABT 1.5 MILES SOUTH OF AUSTERLITZ MINE.

Site location context

Political divisions (FIPS codes)

Santa Cruz(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bartlett Mountain(quadrangle 1:24,000 scale)

Atascosa Mountains(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rio De La Concepcion(hydrologic unit)

Rio De La Concepcion(hydrologic accounting unit)

Sonora(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 023S 010E 01 Arizona

Comments on the location information

  • MINE LOCATION GIVEN IN TEXT REFERENCE APPARENTLY IN ERROR BY ONE RANGE; ACCESS DIRECTIONS GIVEN INDICATE ABOVE LOCATION. INFO FROM LAND.ST :(1964)

Commodities

Commodity Importance
Manganese Critical Primary
Copper Primary
Silver Primary

Materials information

Materials Type of material
Psilomelane Ore
Pyrolusite Ore

Alteration

  • (Local) Py-Gossan

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) Jurassic granitic rocks
ListMap

Economic information

Ore body information

  • General form IRREGULAR/LENS
    Strike N25E
    Dip 50SE
    Length 30.48M
    Width 0.46M

Controls for ore emplacement

  • N25e Fissure Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1953
Production years 1953-54

Mining district

District name Oro Blanco District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Frank Otero And E. M. Hunter
  • Type Owner
    Owner Edward A. Sheeney

Comments on the production information

  • PRIOR TO 1953, SHIPMENTS OF HIGH GRADE COPPER - SILVER ORE HAD BEEN MADE FROM ADJACENT CLAIMS.

Workings at the site

  • Type of workings Surface/Underground
    Length 5.49M
    Overall depth 10.67M
    Overall length 9.14M
    Overall width 1.83M

Comments on the workings information

  • 1 SHAFT WITH 1 DRIFT AND IRREGULAR STOPES FROM DRIFT; ONE OPENCUT.

Reference information

Bibliographic references

  • Deposit

    FARNHAM, STEWART, AND DELONG, 1961, MANGANESE DEPOSITS OF ARIZONA: USBM IC 7990.

  • Deposit

    YEEND, WARREN, 1973.

  • Deposit

    ABM BULL 191, P. 64.

  • Deposit

    1957 RECON USBM IC 799

  • Other Database

    CIMRI

  • Production

    USBM IC 7990

General comments

Subject category Comment text
Deposit DEPOSIT AT CONTACT OF COBRE RIDGE TUFF AND QUARTZ MONZONITE DIKE. ORE IN LENSES IN FISSURE ZONE, LITED IN STRIKE LENGTH TO 100 FT. HIGH GRADE LIMITED IN STRIKE LENGTH TO 50 FEET.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1972 Johnson, Maureen G. U.S. Geological Survey

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.