Unidentified Occurrence

The Unidentified Occurrence is a lead and silver mine located in Custer county, Colorado at an elevation of 7,940 feet.

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: Unidentified Occurrence  

State:  Colorado

County:  Custer

Elevation: 7,940 Feet (2,420 Meters)

Commodity: Lead, Silver

Lat, Long: 38.16111, -105.46111

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 Unidentified Occurrence

Unidentified Occurrence MRDS details

Site Name

Primary: Unidentified Occurrence


Commodity

Primary: Lead
Primary: Silver


Location

State: Colorado
County: Custer
District: Silver Cliff District


Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Underground
Years of Production:
Organization:
Significant: N
Deposit Size: S


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains


Mineral Deposit Model

Model Name: Epithermal veins


Orebody

Not available


Structure

Type: R
Description: Silver Cliff Volcanic Center, Ben West Volcano, Wet Mountains

Type: L
Description: Ring Faults


Alterations

Alteration Type: L
Alteration Text: Argillization


Rocks

Name: Rhyolite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene


Analytical Data

Not available


Materials

Ore: Galena
Ore: Silver


Comments

Comment (Location): INFO FROM LAND.ST :1976


References

Reference (Deposit): SHARP, W.N., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081, 1:24,000


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.