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Mountainside Mine

Producer in Yavapai county in Arizona, United States with commodities Gold, Silver, Lead
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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. 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 10088886
MRDS ID M800231
Record type Site
Current site name Mountainside Mine
Alternate or previous names Mountainside Group
Related records 10113786

Geographic coordinates

Geographic coordinates: -112.72075, 34.16672 (WGS84)
Elevation 1292
Relative position ABOUT 4 MILES SOUTH-SOUTHEAST OF YARNELL

Site location context

Political divisions (FIPS codes)

Yavapai(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Yarnell(quadrangle 1:24,000 scale)

Bradshaw Mountains(quadrangle 1:100,000 scale)

Prescott(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Hassayampa(hydrologic unit)

Lower Gila-Agua Fria(hydrologic accounting unit)

Lower Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Yavapai

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 010N 005W 36 E2 OF E2 Arizona

Comments on the location information

  • LOCATION MEASURED TO CENTER OF GROUP OF THREE ADITS AT THE END OF ATRAIL NEAR THE MIDDLE OF EAST EDGE OF SECTION. ADDITIONAL ADITS ON HILLSIDE TO SOUTH MAY ALSO BE PART OF THE MINE. LOCATION AS PLOTTED MAY BE SLIGHTLY TOO FAR NORTH

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Lead Secondary

Materials information

Materials Type of material
Quartz Gangue

Alteration

  • (Local) Minor Sericite Along Vein Walls

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -112.72075, 34.16672
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Foliation In Precambrian Metamorphic Rocks Trends N10e To N25e; Granitic Rocks Unfoliated
Type of structure Local
Structure description Veins Parallel Mafic Dikes Which Trend Northeast And Dip At Low Angles, Usually Less Than 40 Degree.

Ore body information

  • General form TABULAR
    Strike N 90 E
    Dip 42N
    Thickness 0.61M
    Depth to bottom 76.2M

Controls for ore emplacement

  • Faulting, Shearing Igneous Activity

Comments on the geologic information

  • DEPOSIT IS QUARTZ VEIN WHICH CUTS PRECAMBRIAN GRANITIC ROCKS. VEIN LOCALIZED ALONG SHALLOWLY-DIPPING ANDESITE AND DIORITE DIKES.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1934
Year of last production 1946

Mining district

District name Rich Hill District

Ownership information

  • Type Owner
    Owner George B. Upton
    First year 1946

Workings at the site

  • Type of workings Underground
    Length 609.6M
    Overall depth 76.2M
    Overall length 335.28M

Comments on the workings information

  • 1100 FOOT LONG CROSSCUT TUNNEL ON MOUNTAINSIDE GROUP CONNECTS WITH 400 FT SHAFT ON MAMIE CLAIM IN FAR SOUTHEAST CORNER OF SECTION 36

Comments on development

  • MINE MAY BE ON PATENTED CLAIM NAMED MOUNTAINEER OR GOLDEN MOUNTAINSIDE

Reference information

Bibliographic references

  • Deposit

    AZ DEPT MIN. RESOURCES FILE DATA

  • Deposit

    BARTH, C.G., 1932, UNPUBLISHED GEOLOGIC MAP, AZ DEPT MIN. RESOURCES.

General comments

Subject category Comment text
Deposit VEIN POSSIBLY NOT ASSOCIATED WITH MAFIC DIKE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1981 Roth, Frances A. (Dewitt, Ed) 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.