Seventy - Six Mine

Past Producer in Yavapai county in Arizona, United States with commodities Silver, Lead, Copper, Gold, Zinc, Tungsten, Antimony
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. Ownership information
  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 10048194
MRDS ID M800264
Record type Site
Current site name Seventy - Six Mine
Alternate or previous names Seventy - Six Claim
Related records 10210791

Geographic coordinates

Geographic coordinates: -112.25602, 34.05339 (WGS84)
Elevation 823
Relative position 6.1 MILES WEST - SOUTHWEST OF BLACK CANYON CITY.

Site location context

Political divisions (FIPS codes)

Yavapai(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Columbia(quadrangle 1:24,000 scale)

Bradshaw Mountains(quadrangle 1:100,000 scale)

Prescott(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Agua Fria(hydrologic unit)

Lower Gila-Agua Fria(hydrologic accounting unit)

Lower Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management AZ)

Bureau of Land Management AZ BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Arizona Yavapai

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 008N 001E 09 SE OF NE Arizona

Comments on the location information

  • 0.75 MILES WEST OF TIP TOP MINE.

Commodities

Commodity Importance
Silver Primary
Lead Primary
Copper Secondary
Gold Secondary
Zinc Critical Tertiary
Tungsten Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Cerargyrite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Silver Ore
Sphalerite Ore
Stibnite Ore
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Crazy Basin Quartz Monzonite;
    Rock description Crazy Basin Quartz Monzonite;
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -112.25602, 34.05339

Economic information

Geologic structures

Type of structure Regional
Structure description Foliation In Precambrian Schist And Granite Trends N 40 E To N 50 E
Type of structure Local
Structure description Veins Parallel Rhyolite Dikes And Regional Foliation

Ore body information

  • General form TABULAR
    Strike N 55 E TO N 65 E
    Dip 70 NE
    Thickness 1.83M
    Length 304.8M
    Width 54.86M
    Depth to bottom 54.86M

Controls for ore emplacement

  • Faulting, Shearing

Comments on the geologic information

  • DEPOSIT IS QUARTZ VEIN PARALLEL TO RHYOLITE DIKES, BOTH OF WHICH CUT PRECAMBRIAN QUARTZ MONZONITE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1880
Year of first production 1936
Year of last production 1940

Mining district

District name Tip Top District

Ownership information

  • Type Operator
    Owner La Bajada Eng. And Equip. Co

Comments on the production information

  • FROM 1936 THROUGH 1940 THE SEVENTY SIX MINE PRODUCED APPROXIMATELY 300 TONS OF HIGH GRADE ORE AVERAGING 0.15 % CU, 2.50 % PB, 313.50 OZ/TON AG, AND 0.10 OZ/TON AU. GOLD VALUES MAY BE TOO HIGH.

Workings at the site

  • Type of workings Underground
    Area 0.171HA
    Length 670.56M
    Overall depth 54.86M
    Overall length 198.12M
    Overall width 9.14M

Reference information

Bibliographic references

  • Deposit

    USGS BULL 782, P. 182.

  • Deposit

    AZ DEPT MIN. RESOURCES FILE DATA.

  • Deposit

    USBM I.C. 8078, P. 28-30.

  • Deposit

    ABM BULL 148, P. 23-24.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit DEPOSIT IS QUARTZ VEIN PARALLEL TO RHYOLITE DIKES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1981 Dewitt, Ed H. Arizona Bureau of Geology and Mineral Technology

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Authoritative Arizona resources

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