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Iron King Mine

Occurrence in Larimer county in Colorado, United States with commodities Copper, Zinc, Molybdenum, Iron
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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. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10013958
MRDS ID D010534
Record type Site
Current site name Iron King Mine

Geographic coordinates

Geographic coordinates: -105.49588, 40.85109 (WGS84)
Elevation 2423
Relative position 28.8 MILES N50W FROM FORT COLLINS

Site location context

Political divisions (FIPS codes)

Larimer(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Haystack Gulch(quadrangle 1:24,000 scale)

Fort Collins(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Cache La Poudre(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 Larimer

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 010N 072W 08;17 NW Colorado

Comments on the location information

  • WORCESTER GIVES LOCATION AS 300 FT NORTH OF COPPER KING WORKINGS O N SOUTH SIDE OF PRAIRIE DIVIDE. ; INFO FROM LAND.ST :1980

Commodities

Commodity Importance
Copper Primary
Zinc Critical Primary
Molybdenum Secondary
Iron Secondary

Comments on the commodity information

  • MOLYBDENITE IN FLAKES UP TO 1/2"

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Ore
Molybdenite Ore
Sphalerite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite;Sherman Granite
    Rock description Pegmatite;Sherman Granite
    Stratigraphic age (youngest) Precambrian
    Chronological age 1410
    Dating method Rb-Sr
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite
    Rock unit name Pegmatite;Sherman Granite
    Rock description Pegmatite;Sherman Granite
    Stratigraphic age (youngest) Precambrian
    Chronological age 1410
    Dating method Rb-Sr

Nearby scientific data

(1) -105.49588, 40.85109
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Front Range Uplift, Sherman Batholith
Type of structure Local
Structure description Virginia Dale Ring Dike Complex

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Prairie Divide (St. Cloud) District

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner E. M. Bartlett, Cherokee Park ; Mrs. L. M. Hill, Denver
    First year 1919

Comments on the workings information

  • FIRST SHAFT IS 35 FT DEEP WITH 10-FT DRIFT FROM BOTTOM RUNNING N 60 W; JUST TO WEST IS SECOND SHAFT, 45 FT DEEP WITH 25-FT DRIFT FROM B OTTOM

Reference information

Bibliographic references

  • Deposit

    WORCESTER, P.G., 1919, MOLYBDENUM DEPOSITS OF COLORADO, WITH GENERA L NOTES ON THE MOLYBDENUM INDUSTRY: CGS BULL. 14, P. 69-70.

  • Deposit

    HORTON, F.W., 1916, MOLYBDENUM, ITS ORES AND THEIR CONCENTRATION, W ITH A DISCUSSION OF MARKETS, PRICES, AND USES: USBM BULL. 111, P. 72.

  • Deposit

    SIMS, P.K., AND OTHERS, 1958, GEOLOGY OF THE COPPER KING URANIUM MI NE, LARIMER COUNTY, COLORADO: USGS BULL. 1032-D, 50 P.

General comments

Subject category Comment text
Deposit WORCESTER (1919) DESCRIBES MO OCCURRING AS SMALL IRREGULAR GRAINS AND AGGREGATES IN POCKETS IN PEGMATITE. WEST SHAFT WAS SUNK ON CONTAC T BETWEEN GRANITE AND COARSE-GRAINED PEGMATITE. THIS "VEIN" COULD ACTU ALLY BE SKARN DEPOSIT SIMILAR TO THAT DESCRIBED AT COPPER KING MINE JU ST TO SOUTH BY SIMS AND OTHERS (1958), AS IT SUPPOSEDLY CONTAINED LARG E QUANTITIES OF MAGNETITE. SEE COPPER KING MINE RECORD FOR DETAILED DE SCRIPTION OF SKARN.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1983 Schwochow, Stephen D. (King, Robert U.) Colorado Geological Survey

Beyond USGS

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

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.