Porphyry Mountain prospect

The Porphyry Mountain prospect is a molybdenum mine located in Boulder county, Colorado.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Porphyry Mountain prospect

State:  Colorado

County:  Boulder

Elevation:

Commodity: Molybdenum

Lat, Long: 40.12556, -105.38194

Map: View on Google Maps

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.


Satelite image of the Porphyry Mountain prospect

Porphyry Mountain prospect MRDS details

Site Name

Primary: Porphyry Mountain prospect


Commodity

Primary: Molybdenum


Location

State: Colorado
County: Boulder
District: Jamestown District


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:


Physiography

Not available


Mineral Deposit Model

Model Name: Climax Mo


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

Not available


Analytical Data

Not available


Materials

Not available


Comments

Comment (Commodity): Noranda found porphyry molybdenum mineralization up to ore grade on the SE side of the stock by drilling in 1981.

Comment (Geology): A Tertiary sodic granite-quartz monzonite porphyry stock intrudes Precambrian rocks and an earlier Tertiary granodiorite at Porphyry Mountain.

Comment (Location): Under SE side of Porphyry Mountain, 1/2 mile north of Jamestown, in sec. 19, T2N, R71W.

Comment (Reserve-Resource): Estimated 400 million lb MoS2.


References

Reference (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.

Reference (Deposit): Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.


Colorado Mining Photos

Placer mines at Cripple Creek, Colorado ca. 1892

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.