The Emma Mine is a silver and gold mine located in Conejos county, Colorado at an elevation of 11,020 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: 11,020 Feet (3,359 Meters)
Commodity: Silver, Gold
Lat, Long: 37.38556, -106.53806
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.
Emma Mine MRDS details
Site Name
Primary: Emma Mine
Secondary: Patented Claim: Emma
Secondary: Ms 12752
Commodity
Primary: Silver
Primary: Gold
Tertiary: Copper
Location
State: Colorado
County: Conejos
District: Decatur West (Stunner) 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: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1881
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: San Juan Volcanic Field
Type: L
Description: Platoro Caldera, Summitville Caldera, Alamosa River Stock, Cornwall Fault
Alterations
Not available
Rocks
Name: Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene
Name: Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene
Analytical Data
Not available
Materials
Ore: Tetrahedrite
Ore: Gold
Ore: Petzite
Gangue: Quartz
Comments
Comment (Location): PROBABLE LOCATION BASED ON PATTON'S MAP IS 0.45 MILE ENE OF TELLURIDE MTN AND 3 MILES ESE OF LOOKOUT MTN. ; INFO FROM LAND.ST :1975
Comment (Deposit): DEPOSIT LIKELY IS QUARTZ VEIN TRENDING NW-SE, BUT IS APPARENTLY LOCATED IN LA JARA CANYON MBR ASH FLOW FILL IN PLATORO CALDERA JUST SOUTH OF CORNWALL FAULT THAT TRUNCATES CORNWALL RESURGENT BLOCK AND MARKS SOUTH BOUNDARY OF SUMMITVILLE CALDERA.
Comment (Workings): ONE TUNNEL 375 FT WITH 50-FT CROSSCUT DRIVEN 60 FT FROM BREAST. 350-FT SHAFT CONNECTS WITH TUNNEL
References
Reference (Deposit): LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.
Reference (Deposit): BLM MINERAL SURVEY MS 12752
Reference (Deposit): PATTON, H.B., 1917, GEOLOGY AND ORE DEPOSITS OF THE PLATORO-SUMMITVILLE MINING DISTRICT, COLORADO: CGS BULL. 13.
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
