Timberline Tunnel

Past Producer in El Paso county in Colorado, United States with commodities Fluorine-Fluorite, Lead, Zinc, Gold, Silver, Copper
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. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10013809
MRDS ID D010311
Record type Site
Current site name Timberline Tunnel
Alternate or previous names Cather Springs Deposit, Claims: Timberline Nos. 1 and 2, MS 20026

Geographic coordinates

Geographic coordinates: -104.91, 38.72945 (WGS84)
Elevation 2627
Relative position 8.1 MILES S 30 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 20 Colorado

Comments on the location information

  • JUST NORTH OF CATHER SPRINGS AND NE OF LITTLE FOUNTAIN CREEK 1.25 MILES SSE OF ST. PETERS DOME. ELEV AND LAT-LONG GIVEN ARE FOR TUNNEL PORTAL. ; INFO FROM LAND.ST :(1981)

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary
Lead Secondary
Zinc Critical Secondary
Gold Secondary
Silver Secondary
Copper Tertiary

Comments on the commodity information

  • AU AND AG OCCURRENCE AND MINOR RECOVERY ASSUMED ON BASIS OF HISTORICAL INFORMATION FOR DISTRICT.

Materials information

Materials Type of material
Chalcopyrite Ore
Fluorite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Barite Gangue
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -104.91, 38.72945

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

Ore body information

  • General form LENTICULAR
    Thickness 2.13M
    Length 60.96M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discoverer William D. Edmonston (Claimant)
Year of first production 1917
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.
    Home office Denver, Co.
    First year 1945

Comments on the production information

  • PART OF TOTAL PRODUCTION BY KRAMER MINES FROM TIMBERLINE, DUFFIELDS, AND MATTIE B. IN 1944-45.

Comments on the workings information

  • ONE TUNNEL HEADING NORTH TO NNW POSSIBLY AS LONG AS 800 FT WITH SOUTHERNMOST 320 FT ACCESSIBLE SURFACE CUTS LIE ON VEIN 600 TO 1050 FT NNW OF PORTAL. NUMEROUS PROSPECT PITS AND SURFACE CUTS.

Comments on development

  • APPARENTLY FIRST WORKED 1917-18, IDLE UNTIL WW II. REOPENED BY KRAMER MINES AND PRODUCED FROM 1944 TO 1945.

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.

  • Production

    STEVEN, 1949

General comments

Subject category Comment text
Deposit COUNTRY ROCK OF PIKES PEAK GRANITE NORTH OF MINE AREA INTRUDED BY SMALL STOCKS AND PLUGS OF FAYALITE GRANITE AND MT ROSA GRANITE AND CUT BY ARCUATE, NE-TRENDING EMERALD VALLEY FAULT SUBCONCENTRIC ON SOUTH SIDE OF MT ROSA INTRUSIVE CENTER, OVERLAPPING, LENTICULAR VEINS UP TO 7 FT THICK AND 200 FT LONG ARRANGED IN SUBPARALLEL FRACTURES OF NARROW NNW-TRENDING SHEAR ZONE; EXPOSED THROUGH 380-FT VERTICAL RANGE AND APPEAR VERTICALLY DISCONTINUOUS AS WELL AS LATERALLY. HIGHER GRADE FLUORSPAR FOUND IN SECOND-PERIOD VEIN FORMATION BUT IS NARROWER AND MORE SILICEOUS THAN VEINS FORMED BY REPEATED BRECCIATION AND DEPOSITION.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1983 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

Authoritative Colorado resources

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