Nellie Mine

The Nellie Mine is a silver mine located in Custer county, Colorado at an elevation of 9,239 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: Nellie Mine  

State:  Colorado

County:  Custer

Elevation: 9,239 Feet (2,816 Meters)

Commodity: Silver

Lat, Long: 38.11444, -105.32056

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 Nellie Mine

Nellie Mine MRDS details

Site Name

Primary: Nellie Mine
Secondary: Sleeping Pet


Commodity

Primary: Silver
Secondary: Lead
Secondary: Copper
Secondary: Zinc


Location

State: Colorado
County: Custer
District: Rosita Hills 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

Type: Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Underground
Discovery Year: 1895
Discovery Method: Ore-Mineral In Place
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: Polymetallic veins


Orebody

Not available


Structure

Type: R
Description: Rosita Volcanic Center, Wet Mtns

Type: L
Description: On Nellie Fault


Alterations

Alteration Type: L
Alteration Text: Weak To Moderate Argillization


Rocks

Name: Trachyte
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene


Analytical Data

Not available


Materials

Ore: Galena
Ore: Sphalerite
Gangue: Pyrite


Comments

Comment (Workings): SHAFT, ONE DRIFT

Comment (Reserve-Resource): A 1981 report suggested that low-grade, bulk-tonnage silver deposits may occur in this area. (Sunshine files)

Comment (Deposit): SHAFT PASSED OUT OF MINERALIZATION INTO GNEISS AT 115 FT

Comment (Location): AT NORTH END OF GAME RIDGE, ABOUT 1-1/4 MILE NE OF ROSITA, IN THE NE/4 NE/4 SEC. 28, T 22 S, R 71 W; INFO FROM LAND.ST :(1976)


References

Reference (Deposit): CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT 2, P. 263-403

Reference (Reserve-Resource): Sunshine Mining Co. Colorado exploration files, unpublished data, Colorado Geological Survey.

Reference (Deposit): EMMONS, S.F., 1896, THE MINES OF CUSTER COUNTY: USGS 17TH ANN. REPORT, PT 2, P. 405-472.

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


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.