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Mayflower Group Mine

Past Producer in Boise county in Idaho, United States with commodities Gold, Silver, Lead, Zinc, Copper, Bismuth
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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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  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 10089028
MRDS ID W007610
Record type Site
Current site name Mayflower Group Mine
Alternate or previous names Mayflower and Elizabeth Group
Related records 10289888

Geographic coordinates

Geographic coordinates: -115.99626, 43.95298 (WGS84)
Elevation 1341
Relative position 2 1/2 MI W OF PLACERVILLE

Site location context

Political divisions (FIPS codes)

Boise(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Placerville(quadrangle 1:24,000 scale)

Idaho City(quadrangle 1:100,000 scale)

Hailey(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boise-Mores(hydrologic unit)

Middle Snake-Boise(hydrologic accounting unit)

Middle Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management ID)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Idaho Boise

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 007N 004E 16,09 Idaho

Comments on the location information

  • ADJOINS GOLD HILL GROUP TO THE SW. LIES IN BASIN OF WEST FORK OF GRANITE CR.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Lead Primary
Zinc Critical Primary
Copper Secondary
Bismuth Critical Tertiary

Materials information

Materials Type of material
Bismuthinite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Tetrahedrite Ore
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Alteration

  • (Local) Oxidized, Sericitized, Slightly Silicified

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Idaho Batholith-Quartz Monzonite;Dikes-Rhyolite Porphyry, Dacite, Quartz Monzonite
    Rock description Idaho Batholith-Quartz Monzonite;Dikes-Rhyolite Porphyry, Dacite, Quartz Monzonite
    Stratigraphic age (youngest) Holocene
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Gravel
    Rock description Gravel

Nearby scientific data

(1) -115.99626, 43.95298
ListMap

Economic information

Ore body information

  • General form LINEAR
    Strike N 40 DEG E
    Dip 70 DEG NW
    Width 1.52M

Controls for ore emplacement

  • Fissure

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1882

Mining district

District name Boise Basin Or Quartzburg District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner Texas-Owyhee Mining And Development Co.
  • Type Owner
    Owner J. B. Eldridge

Comments on the production information

  • TOTAL PRODUCTION SLIGHTLY IN EXCESS OF $15000 IN EARLY OPERATIONS; TOTAL VALUE OF ORE UP TO MARCH 12, 1938 WAS $83500. BY EARLY 1939 TEXAS-OWYHEE MINING AND DEVEL. CO. HAD MILLED 19712 TONS OF ORE FOR WHICH SMELTER RETURNS WERE $132606.19

Workings at the site

  • Type of workings Underground
    Length 1219.2M
    Overall depth 15.24M
    Overall length 152.4M

Comments on development

  • 2 PATENTED, 7 UNPATENTED CLAIMS; 80 TON FINE-GRINDING AND FLOTATION CONCENTRATOR. SURFACE PLANT DISMANTLED IN 1940; NO PRODUCTION SINCE 1949.

Reference information

Bibliographic references

  • Deposit

    BALLARD, S. M., 1924, GEOLOGY AND GOLD RESOURCES OF BOISE BASIN, BOISE COUNTY, IDAHO: ID. BUREAU OF MINES AND GEOL: BULL. NO. 9, 103 P.

  • Deposit

    ROSS, C.P., 1934, SOME LODE DEPOSITS IN THE NORTHWESTERN PART OF THE BOISE BASIN, IDAHO: USGS BULL. 846-D, P. 239-277.

  • Deposit

    ANDERSON, A.L., 1947, GEOLOGY AND ORE DEPOSITS OF BOISE BASIN, IDAHO: USGS BULL. 944-C, P. 266-273.

  • Deposit

    JONES, R.W., 1959, MAYFLOWER AND ELIZABETH GROUP: IDAHO BUR MINES AND GEOLOGY OPEN-FILE REPT.

  • Deposit

    1924 GEOLMAP IDAHO BUR MINES BULL. 9.

  • Deposit

    1934 GEOLMAP ROSS, C.P., BULL. 846-D.

  • Deposit

    1947 GEOLMAP ANDERSON, A.L., BULL. 944-C.

  • Deposit

    1959 OTHER IDAHO BUR MINES AND GEOLOGY OPEN-FILE REPT.

  • Production

    BALLARD, S. M., 1924: ID. BUREAU OF MINES AND GEOL., BULL. NO. 9 ANDERSON, A.L., 1947, USGS BULL. 944-C.

General comments

Subject category Comment text
Deposit Discovery Year: EARLY 1880'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1975 Murphy, Lyn S. U.S. Geological Survey
Updater 01-AUG-1976 Everett, Sandra E. 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