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Silver Helmet Mine

Producer in Pima county in Arizona, United States with commodities Lead, Silver, Copper, Gold
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Production statistics
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10026764
MRDS ID M000125
Record type Site
Current site name Silver Helmet Mine
Related records 10234499

Geographic coordinates

Geographic coordinates: -111.07902, 31.96484 (WGS84)
Elevation 1067
Relative position 1 MILE SE OF SAN XAVIER

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Twin Buttes(quadrangle 1:24,000 scale)

Sells(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Santa Cruz(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 017S 012E 12 Arizona

Comments on the location information

  • W CENTER SECTION 12.

Commodities

Commodity Importance
Lead Primary
Silver Primary
Copper Secondary
Gold Secondary

Materials information

Materials Type of material
Copper Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -111.07902, 31.96484
ListMap

Economic information

Ore body information

  • General form SPOTTY

Controls for ore emplacement

  • Along Fault Contact Of Limestone And Sedimentary Beds.

Comments on the geologic information

  • CRETACEOUS SEDIMENTS ARKOSE, QUARTZITE, CONGLOMERATE, SHALE, LIMESTONE

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1912
Year of last production 1918

Mining district

District name Pima District

Land status

Ownership category Private

Production statistics

  • Year 1918
    Period 1912 - 1918
    Accuracy Estimate
    Description Cp_Grade: ^6 % Pb, 22 Oz. Ag/Ton, Minor Cu And Au
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 621g/mt
    Major Ore Lead Lead 6wt-pct

Comments on the production information

  • WORKED INTERMITTENTLY 1912 - 1918 .

Comments on the workings information

  • TUNNEL OPERATION

Comments on development

  • OPERAOTRS INCLUDED JAMES PEMBERTON

Reference information

Bibliographic references

  • Deposit

    COOPER, J. R., 1960 , SOME GEOLOGIC FEATURES OF THE PIMA MINING DISTRICT, PIMA COUNTY, ARIZONA: USGS BULLETIN 1112-C.

  • Deposit

    KEITH, S. B., 1974 , INDEX OF MINING PROPERTIES IN PIMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 189 , P. 138 .

  • Production

    ABM BULLETIN 189 , P. 138 .

General comments

Subject category Comment text
Deposit RELATIVELY WEAK

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1979 Johnson, Kris H. (Creasey, S.C.) 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.