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Oregon No. 3 Mine

Past Producer in Jefferson county in Colorado, United States with commodities Quartz, REE, Niobium (Columbium), Tantalum, Manganese, Thorium
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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. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10013719
MRDS ID D010165
Record type Site
Current site name Oregon No. 3 Mine
Alternate or previous names Quartz Knob

Geographic coordinates

Geographic coordinates: -105.22086, 39.39527 (WGS84)
Elevation 2286
Relative position 17.3 MILES S 18 E FROM EVERGREEN

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Platte Canyon(quadrangle 1:24,000 scale)

Bailey(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper South Platte(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(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 Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 007S 070W 33 E2 OF SE Colorado

Comments on the location information

  • ABOVE AND EAST OF UNNAMED TRIBUTARY OF SPRING CREEK 0.35 MILE WSW OF RALEIGH PEAK ; INFO FROM LAND.ST :(1975)

Commodities

Commodity Importance
Quartz Primary
REE Critical Secondary
Niobium (Columbium) Critical Tertiary
Tantalum Critical Tertiary
Manganese Critical Tertiary
Thorium Tertiary

Materials information

Materials Type of material
Quartz Ore
Albite Gangue
Fergusonite Gangue
Fluorite Gangue
Pyrolusite Gangue
Thorite Gangue

Host and associated rocks

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

Nearby scientific data

(1) -105.22086, 39.39527
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift, Pikes Peak Batholith
Type of structure Local
Structure description Kennedy Gulch Fault Zone

Ore body information

  • General form ELLIPTICAL
    Length 182.88M
    Width 62.48M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Year of last production 1968

Mining district

District name South Platte Pegmatite District

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner Western Architectural Aggregates, Inc.
    Home office Sedalia, Co.
    First year 1968

Comments on the production information

  • PRODUCTION IN 1964 INCLUDED TONNAGE FROM OREGON NO. 1 AND LITTLE PATSY. 1967 PRODUCTION INCLUDED OREGON NO. 1. 1968 PRODUCTION INCLUDED OREGON NOS, 1 AND 2. RAE PRODUCTION APPARENTLY LIMITED TO SPECIMEN SAMARSKITE.

Comments on the workings information

  • OPEN CUTS INTO QUARTZ-MICROCLINE

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ELLIPTICAL TO NEAR-CIRCULAR PEGMATITE CONSISTS OF WALL ZONE OF GRAPHIC GRANITE WITH BLADED BIOTITE, INCOMPLETELY DEVELOPED; 5-FT-THICK OUTER INTERMEDIATE ZONE OF LARGE PERTHITE CRYSTALS, MINOR QUARTZ, AND BIOTITE ASSOCIATED WITH LARGE AGGREGATES OF CYRTOLITE-THORITE; 20-FT-THICK MIDDLE INTERMEDIATE ZONE OF LARGE PERTHITE CRYSTALS (MINE ZONE); 2-FT- THICK INNER INTERMEDIATE ZONE OF GREEN FLUORITE ALMOST CONTINUOUS AROUND QUARTZ CORE. CORE-MARGIN ALBITE REPLACEMENT UNIT CONTAINS ABUNDANT LARGE SMARSKITE NODULES; RAE MINERALS REPLACE FLUORITE. LARGE PRIMARY VUGS CONTAIN LARGE SMOKY QUARTZ CRYSTALS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1983 Schwochow, Stephen D. Colorado Geological Survey
Updater 01-MAY-1993 Spanski, Gregory T. U.S. Geological Survey

Beyond USGS

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

External references

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.