The Sunnyside Tunnel is a gold and silver mine located in Costilla county, Colorado at an elevation of 10,220 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: 10,220 Feet (3,115 Meters)
Commodity: Gold, Silver
Lat, Long: 37.61806, -105.26722
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Sunnyside Tunnel MRDS details
Site Name
Primary: Sunnyside Tunnel
Commodity
Primary: Gold
Primary: Silver
Secondary: Lead
Secondary: Copper
Location
State: Colorado
County: Costilla
District: Grayback (Russell) 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
Owner Name: Trinchera (Estate)
Years: 1910 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Underground
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: Sierra Blanca Massif, Ft. Garland Embayment
Type: L
Description: Vega Cr. Anticline, Wagon Mesa Fault
Alterations
Alteration Type: L
Alteration Text: Iron Oxides And Copper Staining
Rocks
Name: Monzonite
Role: Host
Age Type: Host Rock
Age Young: Oligocene
Analytical Data
Analytical Data: $22 AU/TON, $14.25 AG/TON, PB UNDET.
Materials
Ore: Galena
Ore: Pyrite
Comments
Comment (Commodity): ONLY REPORTED OCCURRENCE OF PB IN DISTRICT
Comment (Geology): GEOL.DESC: NARROW VEINS WITH LOW-GRADE GOLD MINERALIZATION-LOW-GRADE PLACER DEPOSITS ACCOUNT FOR GOLD PRODUCED SINCE 1939
Comment (Workings): TWO TUNNELS CONNECTED BY WINZE. ADIT DRIVEN 125 FT AT S40E, DEFLECTED SOUTHWEST BY 80-FT DRIFT.
Comment (Location): ALTHOUGH DISTRICT ACTUALLY IS IN UNSURVEYED PRIVATE LAND GRANT, SECTIONS REPORTED ARE BASED ON PATTON AND OTHERS' (1910) MAP RATHER THAN PROJECTIONS FROM ADJACENT QUADS. LAT-LONG AND ELEVATIONS DETERMINED FROM JOPO QUAD. MINE OR CLAIM LIES 1300 FT NNW OF SUMMIT OF GRAYBACK MTN. ; INFO FROM LAND.ST :(1975)
References
Reference (Deposit): PATTON, H.B., AND OTHERS, 1910, GEOLOGY OF THE GRAYBACK MINING DISTRICT, COSTILLA COUNTY, COLORADO: CGS BULL. 2
Colorado Mining Photos
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