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  3. Mineral Resource Data System (MRDS)

Eureka Group

Occurrence in Maricopa county in Arizona, United States with commodity Mercury
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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. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10040376
MRDS ID M055107
Record type Site
Current site name Eureka Group
Alternate or previous names Dolores Claim, Eureka No 1.
Related records 10234448

Geographic coordinates

Geographic coordinates: -112.03045, 33.55507 (WGS84)
Relative position AT THE SOUTH EAST FOOT OF SQUAW PEAK

Site location context

Political divisions (FIPS codes)

Maricopa(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sunnyslope(quadrangle 1:24,000 scale)

Phoenix North(quadrangle 1:100,000 scale)

Phoenix(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Salt(hydrologic unit)

Salt(hydrologic accounting unit)

Salt(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Maricopa

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 002N;003N 003E 34 NW OF NE Arizona

Comments on the location information

  • ADJOINS RICO GROUP ON NORTH. NOT LOCATED ON QUAD. ; INFO FROM LAND.ST :(1964)

Commodities

Commodity Importance
Mercury Tertiary

Materials information

Materials Type of material
Cinnabar Ore

Analytical data

Result ASSAY SHOWS 0.61 PCT HG.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -112.03045, 33.55507
ListMap

Economic information

Controls for ore emplacement

  • Veins In Schist

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Phoenix Mountains District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Louis Larsen And F.E. Jetter
    First year 1964

Comments on the workings information

  • 50 FT. SHAFT, 60 FT OF CROSSCUTS, 90 FT OF DRIFTS. EUREKA NO. 1 CLAIM HAS 185 FT TUNNEL.

Comments on development

  • CLAIMS ARE ELIZABETH, HANNAH, EUREKA, EUREKA NO 1, KEY, RED, RED TOP, AFTERTHOUGHT, UGO, DOLORES, CINNEBAR

Reference information

Bibliographic references

  • Deposit

    ARIZ. BUREAU MINES, 1927, BULL. 122

  • Deposit

    BAILEY, E. H., USGS, PERSONAL FILES

  • Deposit

    USGS BULL 690, 1918. PAGES 102-104.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1972 Bergquist, Joel R. 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.