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Illinois Boy Mine

Past Producer in Hinsdale county in Colorado, United States with commodities Copper, Gold
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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. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10014743
MRDS ID D011655
Record type Site
Current site name Illinois Boy Mine
Alternate or previous names Patented Claim: Illinois Boy, Ms 7610
Related records 10215369

Geographic coordinates

Geographic coordinates: -107.49535, 37.95195 (WGS84)
Elevation 3645
Location accuracy 1000(meters)
Relative position 11.0 MILES S 62 W FROM LAKE CITY

Site location context

Political divisions (FIPS codes)

Hinsdale(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Redcloud Peak(quadrangle 1:24,000 scale)

Silverton(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CO)

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

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Colorado Hinsdale

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 043N 006W 26 SE Colorado

Comments on the location information

  • ILLINOIS BOY AND CONTIGUOUS CLAIMS EXTEND NE ALONG STEEP HILLSIDE NORTH OF WHITECROSS. ELEV AND LAT-LONG GIVEN ARE FOR POSSIBLE WORKINGS (IDENTIFIED FROM AIRPHOTOS) ON UNNAMED TRIBUTARY NORTH OF LAKE FORK GUNNISON RIVER AND BURROWS PARK ABOUT 0.6 MILE NNE OF WHITECROSS AND 1.5 MILE NNW OF WHITECROSS MTN. (UNSURVEYED SECTION). ; INFO FROM LAND.ST :1977

Commodities

Commodity Importance
Copper Primary
Gold Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Calcite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Miocene
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Granite Of Cataract Canyon;Mafic Dikes;Eureka Member Of Sapinero Mesa Tuff;Ash-Flow Member Of Sunshine Peak Tuff
    Rock description Granite Of Cataract Canyon;Mafic Dikes;Eureka Member Of Sapinero Mesa Tuff;Ash-Flow Member Of Sunshine Peak Tuff
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -107.49535, 37.95195
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Volcanic Field, San Juan Depression
Type of structure Local
Structure description San Juan-Uncompahgre Calderas, Lake City Caldera, Silverton Caldera, Eureka Graben

Controls for ore emplacement

  • Ne-Trending Faults Within Eureka Graben

Economic information about the deposit and operations

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

Mining district

District name Park (Whitecross, Burrows Park, Adams) District

Land status

Ownership category Private

Comments on the workings information

  • 250-FT TUNNEL DRIVEN GENERALLY WEST OR NW.

Reference information

Bibliographic references

  • Deposit

    BROWN, W.H., 1926, THE MINERAL ZONES OF THE WHITE CROSS DISTRICT AND NEIGHBORING DEPOSITS IN HINSDALE COUNTY, COLORADO: MINES MAG., V. 15, NO. 11, P. 5-15.

  • Deposit

    LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.

  • Deposit

    WOOLSEY, L.H., 1907, LAKE FORK EXTENSION OF THE SILVERTON MINING AREA, COLORADO: USGS BULL. 315, P. 26-30.

  • Deposit

    BLM MINERAL SURVEY MS 7610

  • Deposit

    KRASOWSKI, D.J., 1976, GEOLOGY AND ORE DEPOSITS OF BURROWS PARK, HINSDALE COUNTY, COLORADO: COLORADO STATE UNIV. M.SC. THESIS, 111 P.

General comments

Subject category Comment text
Deposit VEIN APPEARS TO BE DEVELOPED IN NE EXTENSION OF TWO FAULTS FROM CLEVELAND TUNNEL WORKINGS. FAULTS TREND GENERALLY N 55 E. WEST OF MINE, LIPMAN'S MAP SHOWS FAULTS CUTTING NW-TRENDING CAMBRO-ORDOVICIAN DIABASE DIKE, BUT KRASOWSKI'S MAP SHOWS A NNW-TRENDING DIABASE DIKE TRUNCATED BY NORTHERN OF TWO FAULTS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-84 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Colorado resources

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