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  3. Mineral Resource Data System (MRDS)

Rogers No. 3

Past Producer in Boulder county in Colorado, United States with commodity Tungsten
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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. Host and associated rocks
  8. Nearby scientific data
  9. Controls for ore emplacement
  10. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Production statistics
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10108008
MRDS ID DC00021
MAS/MILS ID 80130695
Record type Site
Current site name Rogers No. 3
Alternate or previous names Rogers No. 3 Workings, Rogers Tract 3, Rogers No 3

Comments on the site identification

  • Rogers Tract 3 may or may not be the identical property. The only reference to Rogers Tract 3 is the COLO BOM 1943 LIST. There is no way to verify the information in record MAS 0080130695 = 10263068. The location is extremely poor--plotting by default in the middle of Nederland.

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -105.43667, 39.98845 (WGS84)
Location accuracy 500(meters)
Relative position Altitude 7,960 ft, 1,900 ft S12E of upper tunnel of Rogers No. 1 mine. Location uncertain. Sketch maps are of individual Rogers mines but do not show all of them relative to one another.

Site location context

Political divisions (FIPS codes)

Boulder(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tungsten(quadrangle 1:24,000 scale)

Denver West(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

St. Vrain(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Arapaho and Roosevelt 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 Boulder

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 01S 72W 3 Colorado

Commodities

Commodity Importance
Tungsten Critical Primary

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

Main Entrance (1) -105.43667, 39.98845
ListMap

Economic information

Comments on the ore body information

  • On eastward-trending veins of Rogers No. 4 and No. 5 vein system, near intersections with NW-trending fractiures of Rogers breccia reef system. In aplite and granite. (PP-245, p. 164)

Controls for ore emplacement

  • Veins

Comments on the geologic information

  • CHALCEDONIC QTZ VEINS CUT GRANITES AND METAMORPHIC ROCKS. MINUTE CRYSTALS OF FERBERITE DISSEM THRU FINE GR. QTZ (HORN ORE), AND COARSELY CRYSTAL. FERBERITE FORMING BRECCIA W C OUNTRY ROCK AND EARLY QTZ VEINS (SOFT ORE) [from Sharps, 1965, describing district as a whole]

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No
Year of last production 1926
Production years <1926

Mining district

District name Boulder Tungsten

Ownership information

  • Type Owner
    Owner Platt Rogers Estate
    Year 1960
  • Type Operator
    Owner Slide Mines, Inc.
    Year 1960

Production statistics

  • Year 1926
    Period Up to 1926
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Tungsten Tungsten 1528WO3

Comments on the production information

  • BETWEEN 10000 AND 100000 UNITS WO3 [from Sharps, 1965, describing district as a whole]
  • Produced 1,528 units WO3 until 1926. (Statements indicate 30,000 units but this includes production from other Rogers mines.) (ColoMetalMining, 1960, p. 64)

Comments on the workings information

  • Numerous small shafts, tunnels, and open cuts. (PP-245, p. 164)

Reference information

Bibliographic references

  • Deposit

    SHARPS, COLO SCH MINES MIN IND BULL, V 8, NO 5.

  • Deposit

    Lovering and Tweto, 1953, USGS Prof. Paper 245, p. 164.

  • Deposit

    Colorado Metal Mining Fund Board, 1960, Tungsten Mines of Colorado.

  • Deposit

    COLO BOM 1943 LIST

General comments

Subject category Comment text
Deposit MOST TUNGSTEN VEINS 6IN-3FT THICK [from Sharps, 1965, describing district as a whole]

Reporter information

Type Date Name Affiliation Comment
Reporter 1972-07-01 Conservation Division Files U.S. Geological Survey also DC00090 = 10108020
Editor 2007-05-22 Melton, Greg U.S. Geological Survey also DC00090 = 10108020
Editor 2014-01-13 Wilson, Anna B U.S. Geological Survey merged and deleted duplicate records.
Reporter 1972-07-01 Conservation Division Files U.S. Geological Survey DC00090 = 10108020
Reporter 1983-11-17 Intermountain Field Operations Center U.S. Bureau of Mines MAS 0080130695 = 10263068

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.