The Unnamed Prospect is a silver, gold, copper, and lead mine located in Costilla county, Colorado at an elevation of 9,281 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: 9,281 Feet (2,829 Meters)
Commodity: Silver, Gold, Copper, Lead
Lat, Long: 37.2625, -105.33056
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.
Unnamed Prospect MRDS details
Site Name
Primary: Unnamed Prospect
Commodity
Primary: Silver
Primary: Gold
Primary: Copper
Primary: Lead
Location
State: Colorado
County: Costilla
District: El Plomo 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: Prospect
Operation Type: Unknown
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: Epithermal veins
Orebody
Not available
Structure
Type: R
Description: Culebra Massif, Rio Grande Rift Zone
Type: L
Description: Unnamed Normal Faults Associated With East Edge Of Rift
Alterations
Not available
Rocks
Name: Latite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Latite
Role: Associated
Age Type: Associated Rock
Age Young: Miocene
Analytical Data
Not available
Materials
Ore: Anglesite
Ore: Galena
Comments
Comment (Location): ON NORTH SIDE OF RITO SECO ON PRIVATE LAND WITHIN THE SANGRE DE CRISTO GRANT, WHICH IS UNSURVEYED: PROBABLE LOCATION BASED ON AIRPHOTO EXAMINATION AND VAN DEIST'S MAP ; INFO FROM LAND.ST :(1975)
Comment (Deposit): AU CONTAINED IN QUARTZ-PYRITE REPLACEMENT ALONG FAULT ZONE. HOST APPEARS TO BE ALTERED LAVA FLOW WITHIN SEQUENCE OF CONGLOMERATES, SANDSTONES, AGGLOMERATES, AND OTHER FLOWS IN SANTA FE AND/OR VALLEJO FMS SIMILAR TO PLOMO (RITO SECO) MINE (ACCORDING TO JOHNSON'S (1969) MAP), BUT VAN DEIST SHOWS HOST TO BE SILURIAN (MORE LIKELY PENNSYLVANIAN) SILICEOUS LIMESTONE IN FAULT CONTACT WITH PRECAMBRIAN GRANITE. FAULT, WHICH IS INTERSECTED BY TENNEL, TRENDS N 35 E, 52.5 NW.
Comment (Workings): DECLINE OF UNKNOWN LENGTH. MAY INTERSECT SHAFT SUNK ON MAIN FAULT 2200 FT TO SE.
References
Reference (Deposit): VAN DEIST, E.C., AND VAN DEIST, P.H., 1898, NOTES ON THE GEOLOGY OF THE WESTERN SLOPE OF THE SANGRE DE CRISTO RANGE IN COSTILLA COUNTY, COLO.: COLO. SCI. SOC. PROC., V. 5, P. 76-80.
Reference (Deposit): JOHNSON, R.B., 1969, GEOLOGIC MAP OF THE TRINIDAD QUADRANGLE, SOUTH-CENTRAL COLORADO: USGS MAP 1-558.
Reference (Deposit): HOLMES, W.I., 1935, BRIEF REPORT ON THE EAST BLACKMORE TRACT: COLO. STATE PLAN. COMM. UNPUB. REPT., 1 P.
Reference (Deposit): GUNTHER, C.G., 1905, THE GOLD DEPOSITS OF PLOMO, SAN LUIS PARK, COLORADO: ECON. GEOLOGY, V. 1, P. 143-154.
Reference (Deposit): VANDERWILT, J.W., 1947, COLO. MINERAL RESOURCES BD., P. 65.
Colorado Mining Photos
Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.
