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Cheyenne District

Producer in El Paso county in Colorado, United States with commodities Fluorine-Fluorite, Lead, Zinc, Gold, Silver, Thorium, Gemstone, REE, Uranium, Niobium (Columbium), Beryllium, Titanium, Metal, Tin
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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. Geologic structures
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Reserves and resources
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10013843
MRDS ID D010369
Record type District
Current site name Cheyenne District
Alternate or previous names St. Peters Dome District

Geographic coordinates

Geographic coordinates: -104.91167, 38.74751 (WGS84)
Elevation 2804
Relative position 5.2 TO 8.5 MILES S 30 TO 47 W FROM COLORADO SPRINGS

Site location context

Political divisions (FIPS codes)

El Paso(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Big Chief(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 04,05,07,08,09,10,17,18,20 Colorado

Comments on the location information

  • DISTRICT LIES IN AREA OF ST. PETERS DOME, SUGARLOAF MOUNTAIN, AND STOVE MOUNTAIN IN UPPER REACHES OF LITTLE FOUNTAIN CREEK, ROCK CREEK, AND SOUTH CHEYENNE CREEK. ACCESSIBLE FROM COLORADO SPRINGS AND CRIPPLE CREEK BY CRIPPLE CREEK ROAD AND GOLD CAMP ROAD. DISTRICT ALSO EXTENDS ONTO MANITOU SPRINGS QUAD. LAT-LONG GIVEN IS FOR ST. PETERS DOME. ; INFO FROM LAND.ST :(1981)

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary
Lead Primary
Zinc Critical Primary
Gold Primary
Silver Primary
Thorium Secondary
Gemstone Secondary
REE Critical Secondary
Uranium Tertiary
Niobium (Columbium) Critical Tertiary
Beryllium Critical Tertiary
Titanium, Metal Critical Tertiary
Tin Critical Tertiary

Comments on the commodity information

  • GEM AND MINERAL SPECIMENS INCLUDE MANY OF THE METALS LISTED ABOVE. W REPORTED BUT UNVERIFIED.

Materials information

Materials Type of material
Astrophyllite Ore
Columbite Ore
Cryolite Ore
Fergusonite Ore
Fluorite Ore
Galena Ore
Pyrochlore Ore
Riebeckite Ore
Sphalerite Ore
Thorite Ore
Topaz Ore
Xenotime Ore
Zircon Ore
Allanite Gangue
Anatase Gangue
Apatite Gangue
Barite Gangue
Bertrandite Gangue
Cassiterite Gangue
Chalcedony Gangue
Chlorite Gangue
Fayalite Gangue
Nacrite Gangue
Rutile Gangue
Sphene Gangue

Alteration

  • (Local) Wallrock Silicification In Veins; Alteration Of Fluorite/Cryolite To Rare Mineral Assemblage; Alteration Of Siderite To Hematite And Limonite.

Host and associated rocks

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

Nearby scientific data

(1) -104.91167, 38.74751
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, Emerald Valley Fault

Controls for ore emplacement

  • Quartz-Fluorspar-Sulfide Veins Localized By Early Joint Sets And Later Cross-Cutting Shear Zones; Gem And Mineral Specimens Localized In Miarolitic Cavities In Pegmatites.

Comments on the geologic information

  • DISTRICT LIES ON ARCHLIKE JOINTED STRUCTURE IN GRANITE WITH THREE PROMINENT JOINT SETS: 1) FIRST SET TRENDS NORMAL TO GRANITE BELT AND STRIKES NW WITH VERTICAL TO STEEP NE DIPS; 2) SECOND GROUP DEFINES ARCHLIKE STRUCTURE WITH VARIABLE NE STRIKES AND SE DIPS; 3) THIRD GROUP APPROXIMATELY PARALLELS GRANITE BELT WITH VERTICAL TO STEEP DIPS. ALL SETS CUT BY LATE N-TRENDING SHEARS AND MINOR FAULTS.

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1901
Year of first production 1910
Year of last production 1945

Mining district

District name Cheyenne (St. Peters Dome) District

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Kramer Mines, Inc. (Timberline And Other F Properties)
    Home office Denver, Co.
    First year 1945

Comments on the production information

  • TOTAL ESTIMATED FLUORSPAR PRODUCTION BY KRAMER MINES, 1944-45, CONSISTING OF 8500 ST FROM TIMBERLINE, 7000 ST FROM LEYTE OPEN PIT, 600 ST FROM MATTIE B., WITH MINOR BY-PRODUCT RECOVERY OF PB, ZN, AU, AND AG. TOTAL INTERMITTENT GEM AND MINERAL SPECIMEN COLLECTING CONSIDERED SMALL.

Reserves and resources

  • Type In-situ
    Estimate year 1949
    Indicated 29000mt ore
    Commodity Subtype Grade units Group Importance Year
    Fluorine-Fluorite CaF2 35 wt-pct Fluorine Major 1949
  • Type In-situ
    Estimate year 1949
    Inferred 3000mt ore
    Commodity Subtype Grade units Group Importance Year
    Fluorine-Fluorite CaF2 35 wt-pct Fluorine Major 1949

Comments on the reserve resource information

  • STEVEN, 1949

Comments on the workings information

  • FLUORSPAR MINES OPERATED BY SEVERAL SHAFTS, TUNNELS, AND OPEN PIT. MINERAL COLLECTION SITES WORKED BY SMALL OPEN CUTS AND DIRECTLY FROM OUTCROPS AND FLOAT.

Comments on development

  • DISTRICT'S FIRST FLUORSPAR PRODUCED IN 1910-11 FROM HUGHES BOSS CLAIM (DUFFIELDS DEPOSIT). FLUORSPAR MINES INACTIVE FROM 1918 TO WORLD WAR II WHEN REOPENED BY KRAMER MINES, PRODUCING IN 1944-45 FROM TIMBERLINE, LEYTE OPEN PIT (DUFFIELDS DEPOSIT), AND MATTIE B., WITH MINOR RECOVERY OF PB, ZN, AU, AND AG. UNUSUAL AND RARE MINERALS DISCOVERED IN LATE 1800S. INTERMITTENT COLLECTING CONTINUES TO PRESENT. STOVE MOUNTAIN LOCALITY ESPECIALLY NOTED FOR CRYOLITE AND RARE FLUORINE ALTERATION MINERALS, GEM ZIRCON, SMOKY QUARTZ, BASTNAESITE, RIEBECKITE, ASTROPHYLLITE, GENTHELVITE (ONLY KNOWN WORLD OCCURRENCE), AND PROBABLE FIRST COLORADO DISCOVERIES OF FERGUSONITE AND COLUMBITE.

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

    GLASS, J.J., AND ADAMS, J.W., 1953, GENTHELVITE CRYSTAL FROM EL PASO COUNTY, COLORADO: AM. MINERALOGIST, V. 38, NOS. 9 AND 10, P. 858-860. & &

  • Deposit

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

  • Deposit

    NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 141-142.

  • Production

    STEVEN, 1949

General comments

Subject category Comment text
Deposit SOUTHEASTERN PART OF PIKES PEAK BATHOLITH INTRUDED BY SMALL STOCKS AND PLUGS OF MT. ROSA GRANITE AND FAYALITE GRANITE, AND CUT BY PRECAMBRIAN PEGMATITE, APLITE, RIEBECKITE-SYENITE LAMPROPHYRE DIKES, AND BY LATER (TERTIARY?) LAMPROPHYRE. SOUTH PART OF DISTRICT CUT BY SEVERAL NE-TRENDING ARCUATE FAULTS SUBCONCENTRIC TO SE SIDE OF MT ROSA INTRUSIVE CENTER. PRINCIPAL EPITHERMAL QUARTZ-FLUORSPAR-SULFIDE VEINS LOCALIZED IN N-TRENDING LATE (TERTIARY?) SHEAR ZONE CONTAINING EN ECHELON FRACTURES, PROGRESSING EASTWARD FROM SOUTH TO NORTH AND FLANKED BY WEAKER, DISCONTINUOUS, PARALLEL BELTS OF FRACTURES. SOME CONTAIN LATE LAMPROPHYRE DIKES. STEVEN (1949) RECOGNIZED TWO PERIODS OF VEIN DEPOSITION: 1) EARLY, FINELY GRANULAR TO CHALCEDONIC QUARTZ, STAINED GREEN BY DISSEMINATED CHLORITE, OCCASIONALLY BRECCIATED AND RECEMENTED; AND 2) FIRST-STAGE DEPOSITION FOLLOWING STRONG SHEARING AND FAULTING, CHARACTERIZED BY GRANITIC WALLROCK AND BRECCIA FRAGMENT SILICIFICATION; PRINCIPAL COARSE CRYSTALLINE
Deposit FLOURITEDEPOSITED AS BRECCIA FILLING INTERGROWN WITH QUARTZ, SOME BRECCIATION AND RECEMENTATION BY LATER FIRST-STAGE FLUORITE; SECOND STAGE DEPOSITION OF FINELY GRANULAR WHITE QUARTZ, PINK BARITE, AND BASE-METAL SULFIDES WITH SOME AU AND AG; THIRD-STAGE DEPOSITION OF COARSE CRYSTALLINE QUARTZ VEINLETS WITH MINOR SPECULAR HEMATITE. GEM AND MINERAL SPECIMENS OCCUR MAINLY IN MIAROLITIC CAVITIES IN GENERALLY NNE-TO NENE-TRENDING PEGMATITES AND IN VARIABLY TRENDING RIEBECKITE-SYENITE DIKES. ASSEMBLAGE OF RAE AND FLUORINE MINERALS GENETICALLY RELATED TO ORIGINAL FLUORINE-ENRICHED MAGMA. GEM-AND RAE-BEARING PEGMATITES ARE PRECAMBRIAN IN AGE, BUT STEVEN BELIEVES QUARTZ-FLUORITE-SULFIDE VEINS TO BE TERTIARY (?) (MIOCENE) IN AGE.
Deposit DISTRICT ORIGINALLY NAMED CHEYENNE IN CLAIM RECORDS, BUT IS MORE COMMONLY KNOWN BY POPULAR COLLECTORS' NAME OF ST. PETERS DOME. DETAILED RECORDS PREPARED FOR PRINCIPAL FLUORSPAR MINES (EUREKA, DUFFIELDS, MATTIE B., TIMBERLINE), FOR U/TH PROPERTIES (BLUE BIRD, DOROTHY O., ST. PETERS DOME NO. 1, TRAIL MINES PROSPECT), FOR STOVE MOUNTAIN MINERAL LOCALITY. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-83 Schwochow, Stephen D. Colorado Geological Survey
Editor 16-NOV-11 Wilson, Anna B U.S. Geological Survey Changed record type from site to district.

Beyond USGS

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

Maps centered on this site

Authoritative Colorado resources

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