1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Cooper Fork Deposit

Occurrence in Pitkin county in Colorado, United States with commodity Iron
Map
XML
JSON
KML
B
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  12. Land status
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10215460
MAS/MILS ID 0080970006
Record type Site
Current site name Cooper Fork Deposit
Alternate or previous names Taylor's Peak Deposit, Cooper's Iron Mountain, Pitkin Iron Mine, Cooper Fork Quarry

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -106.78622, 39 (WGS84)
Elevation 3660
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Pitkin(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pearl Pass(quadrangle 1:24,000 scale)

Gunnison(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Roaring Fork(hydrologic unit)

Colorado Headwaters(hydrologic accounting unit)

Colorado Headwaters(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

White River National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Pitkin

Commodities

Commodity Importance
Iron Primary

Materials information

Materials Type of material
Barite Unknown
Calcite Unknown
Chlorite Unknown
Limonite Unknown
Magnetite Unknown
Pyrite Unknown
Quartz Unknown
Siderite Unknown

Nearby scientific data

Ore Body (1) -106.78622, 39
ListMap

Economic information

Ore body information

  • Length 30M
    Width 3M
    Depth to top 0M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 REPLACEMENT
    Shape of Orebody #1 MASSIVE
    Shape of Orebody #2 IRREGULAR
    Primary mode of Origin CONT METASOMATIC
    Primary Ore Control LITHOLOGY
    Secondary Ore Control CONTACT ZONE
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 CARBONATE SILIC
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Date of Last Modification 810720

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Mining district

District name Columbia District

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category National Forest

Comments on the ownership information

  • THE PITKIN IRON MINE, LOCATED IN THE SAME GENERAL AREA, IS LOCATED ON PATENTED CLAIMS HELD BY THE PITKIN IRON CORP. OF CHICAGO. THESE CLAIMS MAY POSSIBLY ALSO INCLUDE THE COOPER FORK QUARRY AND COOPER FORK DEPOSIT.

Comments on the reserve resource information

  • U.S. BUREAU OF MINES, 1957, MINERAL PROPERTY FILE 34.37. THE ABOVE FILE GIVES RESERVES OF 100 TONS INDICATED AND NOT MORE THAN 1000 TONS INFERRED, BUT DOES NOT INDICATE WHETHER THESE ARE LONG TONS OR SHORT TONS. BECAUSE IRON RESERVES ARE NORMALLY GIVEN IN LONG TONS, IT WAS ASSUMED THAT THE FIGURES GIVEN ARE IN LONG TONS.

Reference information

Bibliographic references

  • Deposit

    BERRY, J.W., 1968, THE CLIMATE OF COLORADO, IN CLIMATES OF

  • Deposit

    THE STATES, VOLUME II - WESTERN STATES INCLUDING ALASKA

  • Deposit

    AND HAWAII: NOAA, EDS., PORT WASHINGTON, N.Y., WATER

  • Deposit

    INFORMATION CENTER, INC., P. 595-613.

  • Deposit

    BROWN, W.M. AND R.G. REEVES, 1964, MINERAL RESOURCES OF

  • Deposit

    COLORADO, U.S. GEOLOGICAL SURVEY, PP.93-98.

  • Deposit

    HARDER, E.C., 1908, THE TAYLOR PEAK AND WHITEPINE IRON-ORE

  • Deposit

    DEPOSITS, COLORADO, U.S. GEOLOGICAL SURVEY, BULLETIN 380,

  • Deposit

    CONTRIBUTIONS TO ECONOMIC GEOLOGY, PART 1, PP. 188-194.

  • Deposit

    HAYES, C.W., 1909, IRON ORES OF THE UNITED STATES, U.S.

  • Deposit

    GEOLOGICAL SURVEY BULLETIN 394, PAPERS ON THE CONSERVA-

  • Deposit

    TION OF MINERAL RESOURCES, PP. 70-113.

  • Deposit

    KNOPF, ADOLPH, 1926, RECENT DEVELOPMENTS IN THE ASPEN

  • Deposit

    DISTRICT, COLORADO, U.S. GEOLOGICAL SURVEY BULLETIN 785,

  • Deposit

    CONTRIBUTIONS TO ECONOMIC GEOLOGY, PART 1, P. 12.

  • Deposit

    LEITH, C.K., 1905, IRON ORES OF THE WESTERN UNITED STATES

  • Deposit

    AND BRITISH COLUMBIA, U.S. GEOLOGICAL SURVEY BULLETIN 285

  • Deposit

    CONTRIBUTIONS TO ECONOMIC GEOLOGY, PP. 194-200.

  • Deposit

    STARCH, KARL E., 1978-1979. THE MINERAL INDUSTRY OF COLORADO

  • Deposit

    BUREAU OF MINES MINERALS YEARBOOK, PP. 1-17.

General comments

Subject category Comment text
Deposit U.S. BUREAU OF MINES MINERAL PROPERTY FILE 34.37 DESCRIBES TWO SMALL MAGNETITE DEPOSITS IN THE HEADWATERS AREA OF COOPER FORK CREEK. THESE TWO DEPOSITS ARE BELIEVED TO BE COOPER FORK QUARRY (0080970006) AND COOPER FORK DEPOSIT (0080970006). IT IS PROBABLE THAT THESE TWO DEPOSITS ARE NO MORE THAN A COUPLE OF ISOLATED MAGNETITE OUTCROPS IN THE GENERAL VICINITY OF THE PITKIN IRON MINE (0080970151). BECAUSE OF THE SMALL SIZE OF THESE DEPOSITS (ESTIMATED AT 100 LONG TONS EACH), NEITHER PROPERTY WAS EVALUATED. U.S. BUR. MINES MIN. PROP. FILE 34.37 INDICATES THAT BOTH COOPER FORK QUARRY AND COOPER FORK DEPOSIT ARE IN SECTIONS 18 AND 19, BUT THIS INFORMATION MAY BE INCORRECT BECAUSE THE AREA IS UNSURVEYED. EVALUATOR ESTIMATES LOCATION AS SE1/4, SECTION 17.

Reporter information

Type Date Name Affiliation Comment
Reporter 13-MAY-1985 Rcs, Mbs U.S. Bureau of Mines

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.