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  3. Mineral Resource Data System (MRDS)

Silver Pass Mine

Past Producer in Pima county in Arizona, United States with commodities 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. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10039676
MRDS ID M050635
Record type Site
Current site name Silver Pass Mine

Geographic coordinates

Geographic coordinates: -111.05736, 32.19955 (WGS84)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cat Mountain(quadrangle 1:24,000 scale)

Silver Bell Mountains(quadrangle 1:100,000 scale)

Tucson(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 014S 013E 19 Arizona

Commodities

Commodity Importance
Copper Primary
Silver Primary

Materials information

Materials Type of material
Pyrite Ore

Alteration

  • (Local) Qtz-Ser-Pyr, Argillitic, Py-Gossan

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Rock unit name Safford Tuff;Shorts Ranch Andesite
    Rock description Safford Tuff;Shorts Ranch Andesite

Nearby scientific data

(1) -111.05736, 32.19955
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Poorly Exposed Fault At Shaft Collar

Ore body information

  • Strike N60E
    Dip STEEP S.

Comments on the geologic information

  • GEOL.DESC: TUFF CALLED SAFFORD TUFF IN VICINITY SHOULD PROBABLYBE INCLUDED IN CAT MTN RHYOLITE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Amole District

Comments on the workings information

  • SHAFT, PROSPECT PIT

Reference information

Bibliographic references

  • Deposit

    KINNISON, J.E., 1958, GEOLOGY & ORE DEPOSITS OF THE SOUTHERN AMOLE DIST: U.A. MS THESIS.

  • Deposit

    ASHLEY, R. P. 1974, FIELD EXAM.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit SHAFT OPEN BUT FILLED WITH TRASH. SHORT'S RANCH ANDESITE ON DUMP SHOWS ARGILLIZATION OR LOOKS SILICIFIED (PROBABLY QTZ-SERICITE ALTERATION), WITH FEW % DISSEMINATED PYRITE. SOME CELLULAR LIMONITE GOSSAN IN OXIDIZED ALTERED ROCK. CELLULAR LIMONITE GOSSAN ALSO IN TUFF IN PROSPECT PIT 55 M WEST OF SHAFT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1973 Ashley, Roger P. 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.