The Ashley Tunnel is a lead and zinc mine located in Saguache county, Colorado at an elevation of 11,083 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
Elevation: 11,083 Feet (3,378 Meters)
Commodity: Lead, Zinc
Lat, Long: 38.32361, -106.11861
Map: View on Google Maps
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Ashley Tunnel MRDS details
Site Name
Primary: Ashley Tunnel
Commodity
Primary: Lead
Primary: Zinc
Location
State: Colorado
County: Saguache
District: Bonanza (Kerber Creek)
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: Occurrence
Operation Type: Unknown
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: Sawatch Range, San Juan Volcanic Field, Rio Grande Rift
Type: L
Description: Bonanza Caldera
Alterations
Alteration Type: L
Alteration Text: Early Barren Stage Of Alteration By Fumarolic Or Acid-Hot Spring Activity Resulted In Intense Silicification, Wallrock Replacement By Jasper And Alteration Products Hematite, Diaspore, Alunite, Barite, Zunyite, Rutile, And Kaolin Minerals. Later Mineralizing Stage By Alkaline Or Neutral Solutions Deposited Ore And Gangue And Caused Micaceous Alteration (Sericite And Chlorite) And Calcite, Quartz, And Pyrite.
Rocks
Name: Andesite
Role: Associated
Age Type: Host Rock Unit
Age Young: Oligocene
Name: Andesite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene
Name: Andesite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene
Name: Andesite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene
Analytical Data
Not available
Materials
Ore: Galena
Ore: Sphalerite
Ore: Pyrite
Gangue: Quartz
Gangue: Barite
Comments
Comment (Location): S-T-R, LAT-LONG, AND ELEV. TAKEN FROM BURBANK'S (1932) PLATE 1 (SCALE 1:12000). MINE OR CLAIM LIES ALONG RAWLEY GULCH EAST OF PARAGON MINE ; INFO FROM LAND.ST :1976
Comment (Deposit): DEPOSIT LIES IN PARAGON FAULT ZONE, TRENDING N75E, DIPPING SE
Comment (Workings): ONE TUNNEL DRIVEN S84E FOR 300 FT. SUPPOSEDLY CONNECTED BY WINZE TO GREAT MOGUL TUNNEL
References
Reference (Deposit): PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT, SAGUACHE COUNTY, COLORADO: COLORADO GEOLOGICAL SURVEY BULL. 9, 136 P.
Reference (Deposit): BURBANK, W.S., 1932, GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO: USGS PROF. PAPER 169, 166 P.
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
