Last Chance Mine

Past Producer in Boise county in Idaho, United States with commodities Gold, Lead, Zinc, Silver
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. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10089029
MRDS ID W007614
Record type Site
Current site name Last Chance Mine
Related records 10119841

Geographic coordinates

Geographic coordinates: -115.98816, 43.96178 (WGS84)
Elevation 1494
Relative position TOWNSITE OF QUARTZBURG

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)

Geographic areas

Country State County
United States Idaho Boise

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 007N 004E 10 Idaho

Comments on the location information

  • N. OF THE GOLD HILL VEIN

Commodities

Commodity Importance
Gold Primary
Lead Tertiary
Zinc Critical Tertiary
Silver Tertiary

Materials information

Materials Type of material
Bismuth Ore
Galena Ore
Pyromorphite Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Gouge

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Diorite Porphyry;Rhyolite Porphyry
    Rock description Diorite Porphyry;Rhyolite Porphyry
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -115.98816, 43.96178

Economic information

Ore body information

  • General form IRREGULAR, STREAKS, LENSES
    Strike N
    Dip 70 DEG N

Controls for ore emplacement

  • Fissure

Economic information about the deposit and operations

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

Mining district

District name Boise Basin

Land status

Ownership category BLM Administrative Area

Comments on the production information

  • GROSS PRODUCTION IS SLIGHTLY LESS THAN $55,000

Comments on development

  • 2 PATENTED CLAIMS

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

    ANDERSON, A.L., 1947, GEOLOGY AND ORE DEPOSITS OF BOISE BASIN, IDAHO: USGS BULL. 944-C, P. 265.

  • Deposit

    1924 GEOLMAP IDAHO BUR MINES, BULL. 9

  • Deposit

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

  • Production

    BALLARD, S. M., 1924,: ID. BUREAU OF MINES AND GEOL., BULL. NO. 9, 103 P.

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.