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Eureka Shaft

Past Producer in El Paso county in Colorado, United States with commodities Fluorine-Fluorite, Gemstone, Titanium, Metal
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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. Ore body information
  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 10013806
MRDS ID D010308
Record type Site
Current site name Eureka Shaft

Geographic coordinates

Geographic coordinates: -104.90139, 38.75084 (WGS84)
Elevation 2688
Location accuracy 5000(meters)
Relative position 6.5 MILES S 32 W FROM COLORADO SPRINGS, Within 1.5-Mile Radius, Within 1.5-Mile Radius, Within 1.5-Mile Radius

Site location context

Political divisions (FIPS codes)

El Paso(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Manitou Springs(quadrangle 1:24,000 scale)

Colorado Springs(quadrangle 1:100,000 scale)

Pueblo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Fountain(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Federal lands

Pike and San Isabel National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado El Paso

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 015S 067W 16 NW Colorado

Comments on the location information

  • EXACT LOCATION UNCERTAIN BUT COULD BE SHAFT NW NW SEC. 16 0.6 MILE NE OF ST. PETERS DOME. ELEV AND LAT-LONG GIVEN ARE FOR SAID SHAFT. EUREKA TUNNEL PROBABLY IN SW SW SEC. 09 OR NW NW NW SEC. 16. ; INFO FROM LAND.ST :(1981)

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary
Gemstone Secondary
Titanium, Metal Critical Tertiary

Comments on the commodity information

  • THIS MINE IS ONLY DESCRIBED NACRITE LOCALITY IN COLORADO AND ALSO PROBABLY THE SITE OF DISCOVERY OF WEBERITE IN OLDER SPECIMENS ORIGINALLY THOUGHT TO BE CRYOLITE.

Materials information

Materials Type of material
Cryolite Ore
Fluorite Ore
Microcline Gangue
Nacrite Gangue
Riebeckite Gangue
Rutile Gangue
Zircon Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Pikes Peak Granite;Fayalite Granite
    Rock description Pikes Peak Granite;Fayalite Granite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Pikes Peak Granite;Fayalite Granite
    Rock description Pikes Peak Granite;Fayalite Granite

Nearby scientific data

(1) -104.90139, 38.75084
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift, Pikes Peak Batholith
Type of structure Local
Structure description Mt Rosa Intrusive Center, Ute Pass Fault, Manitou Park Half Graben

Ore body information

  • General form IRREGULAR

Economic information about the deposit and operations

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

Mining district

District name Cheyenne (St. Peters Dome) District

Land status

Ownership category National Forest

Comments on the workings information

  • ONE SHAFT OF UNKNOWN DEPTH AND POSSIBLY ONE TUNNEL

Reference information

Bibliographic references

  • Deposit

    TRIMBLE, D.E., AND MACHETTE, M.N., 1979, GEOLOGIC MAP OF THE COLORADO SPRINGS-CASTLE ROCK AREA, FRONT RANGE URBAN CORRIDOR, COLORADO: USGS MAP I-857-F.

  • Deposit

    FINLAY, G.I., 1916, DESCRIPTION OF THE COLORADO SPRINGS QUADRANGLE: USGS FOLIO 203.

  • Deposit

    STEVEN, T.A., 1949, GEOLOGY AND FLUORSPAR DEPOSITS OF THE ST. PETERS DOME DISTRICT, COLORADO: COLORADO SCI. SOC. PROC., V. 15, NO. 6, P. 259-284.

  • Deposit

    PEARL, R.M., 1965, COLORADO GEM TRAILS AND MINERAL GUIDE: DENVER, SAGE BOOKS, P. 171-180.

  • Deposit

    OVER, EDWIN, JR., 1929, SOME MINERAL LOCALITIES OF EL PASO COUNTY: ROCKS AND MINERALS, V. 4, NO. 4, P. 106-107.

  • Deposit

    PAULY, HANS, 1954, WEBERITE FROM PIKES PEAK, COLORADO: AM. MINERALOGIST, V. 39, NOS. 7 AND 8, P. 669-674.

General comments

Subject category Comment text
Deposit COUNTRY ROCK OF PIKES PEAK GRANITE INTRUDED BY SMALL STOCKS AND PLUGS OF FAYALITE GRANITE AND CUT BY N 60 W-TRENDING APLITE DIKES. ROCK FRACTURED BY FIRST-GROUP JOINTS AT N 50 TO 60 W, VERTICAL, AND BY SECOND-GROUP JOINTS AT N 30 E, 40 TO 70 SE. IRREGULAR RIEBECKITE-CRYOLITE PEGMATITE OCCURS NE OF SHAFT BELOW ROAD PROBABLY AT SITE OF TUNNEL. SPECIMEN TOPAZ NOTED FOR EXCELLENT FORM AND BEAUTIFUL COLORS OF PINK, EMERALD GREEN, LIGHT WINE TO HONEY YELLOW, PURPLE, RICH REDDISH BROWN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-83 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.