Red Spring Tunnel

The Red Spring Tunnel is a silver mine located in Custer county, Colorado at an elevation of 8,681 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

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.

Site Name

Primary: Red Spring Tunnel

Commodity

Primary: Silver

Location

State: Colorado
County: Custer
District: Rosita

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: Unknown
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

Not available

Orebody

Not available

Structure

Type: R
Description: Rosita Volcanic Center, Wet Mtns

Type: L
Description: Ring Fault For Rosita Volcanic Center

Alterations

Alteration Type: L
Alteration Text: Probably Argillized

Rocks

Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Miocene

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

Analytical Data

Not available

Materials

Not available

Comments

Comment (Workings): TUNNEL 270 FT BECOMING INCLINE WITH 20 DEGREE DIP FOR 97 FT; SHAFT MEETS LOWER END OF INCLINE 64 FT FROM SURFACE AND SINKS AN ADDITIONAL 36 FT

Comment (Location): ON HILL NORTH OF CAROLINA GULCH ; INFO FROM LAND.ST :(1976)

Comment (Deposit): DEPOSIT ALL APPEARS TO BE IN MUD; PROBABLY MUD IS DEVITRIFICATION PRODUCT RELATED TO VOLCANIC VENT; POSSIBLY IT IS GOUGE RELATED TO RING FAULT

Comment (Geology): GNEISS UNDERLIES VOLCANICS

References

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

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

Colorado Mining Photos

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