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Porphyry Mountain prospect

Prospect in Boulder county in Colorado, United States with commodity Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Mineral occurrence model information
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10311034
Record type Site
Current site name Porphyry Mountain prospect

Geographic coordinates

Geographic coordinates: -105.38253, 40.12554 (WGS84)

Site location context

Political divisions (FIPS codes)

Boulder(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Raymond(quadrangle 1:24,000 scale)

Estes Park(quadrangle 1:100,000 scale)

Greeley(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

Comments on the location information

  • Under SE side of Porphyry Mountain, 1/2 mile north of Jamestown, in sec. 19, T2N, R71W.

Commodities

Commodity Importance
Molybdenum Primary

Comments on the commodity information

  • Noranda found porphyry molybdenum mineralization up to ore grade on the SE side of the stock by drilling in 1981.

Mineral occurrence model information

Model code 50
USGS model code 16
Deposit model name Climax Mo

Nearby scientific data

(1) -105.38253, 40.12554
ListMap

Economic information

Comments on the geologic information

  • A Tertiary sodic granite-quartz monzonite porphyry stock intrudes Precambrian rocks and an earlier Tertiary granodiorite at Porphyry Mountain.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Mining district

District name Jamestown District

Comments on the reserve resource information

  • Estimated 400 million lb MoS2.

Reference information

Bibliographic references

  • Deposit

    Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.

  • Deposit

    Jenkins, R. E., II, 1979, Geology, geochemistry and origin of mineral deposits in the Hill Gulch area, Jamestown, Colorado: Golden, Colorado School of Mines, Ph.D. dissertation, 377 p.

Reporter information

Type Date Name Affiliation Comment
Reporter 15-DEC-2005 Beach, Richard A. 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.