The Unnamed Prospects is a silver, copper, and lead mine located in San Juan county, Colorado at an elevation of 10,000 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: 10,000 Feet (3,048 Meters)
Commodity: Silver, Copper, Lead
Lat, Long: 37.70167, -107.76333
Map: View on Google Maps
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Unnamed Prospects MRDS details
Site Name
Primary: Unnamed Prospects
Commodity
Primary: Silver
Primary: Copper
Primary: Lead
Location
State: Colorado
County: San Juan
District: Engineer Mountain Area
Land Status
Land ownership: National Forest
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.
Administrative Organization: San Juan N. F.
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
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: Polymetallic veins
Orebody
Not available
Structure
Type: R
Description: San Juan Uplift
Type: L
Description: Needle Mtns Uplift, Unnamed Faults, Unnamed Syncline
Alterations
Alteration Type: L
Alteration Text: Fe Oxides, Cu Carbonate
Rocks
Name: Trachyte
Role: Associated
Age Type: Associated Rock Unit
Age Young: Pliocene
Name: Trachyte
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Analytical Data: SCOTT'S (1983) SAMPLES OF FE-STAINED LIMESTONE FROM SOUTH PROSPECTS CONTAINED 0.2 OZ/TON AG. LIMESTONE SAMPLES CONTAINING GALENA, BARITE, AND CU CARBONATES CONTAINED 0.7 TO 1.5 OZ/TON AG, 0.12 TO 0.55% PB, 0.02 TO 0.03% CU.
Materials
Gangue: Calcite
Gangue: Barite
Gangue: Limonite
Gangue: Hematite
Gangue: Malachite
Gangue: Epidote
Gangue: Dolomite
Comments
Comment (Workings): SURFACE PROSPECT PITS; ONE TUNNEL OF UNKNOWN EXTENT HEADING GENERALLY EAST
Comment (Location): (LAND STATUS AND ADMINISTRATIVE AREA LOCATIONS CALCULATED USING GIS OVERLAY ANALYSIS FOR SAN JUAN N. F.). EAST OF AND BELOW U.S. ROUTE 550 0.5 TO 0.7 MILE EAST OF COAL BANK PASS ALONG UNNAMED TRIBUTARY OF COAL CREEK, 2.1 TO 2.3 MILES EAST OF ENGINEER MOUNTAIN. (UNSURVEYED SECTION). ; INFO FROM LAND.ST :1975
Comment (Deposit): NW-TRENDING UNCOMPAHGRE FM (PRECAMBRIAN) QUARTZITES AND SLATES LIE IN FAULT CONTACT WITH FOLDED PALEOZOIC LIMESTONES. FAULTS APPARENTLY DIE OUT TO NW INTO FOLDS IN PALEOZOIC SECTION. NORTH PROSPECTS LIE ON N 36 W-TRENDING FAULT; SOUTH PROSPECTS LIE IN SYNCLINE NORTH OF N 66 W-TRENDING FAULT.
References
Reference (Deposit): SCOTT, D.C., 1983, MINERAL INVESTIGATION OF THE WEST NEEDLE WILDERNESS STUDY AREA AND THE BLM WEST NEEDLE CONTIGUOUS WILDERNESS STUDY AREA, LA PLATA AND SAN JUAN COUNTIES, COLORADO: USBM MLA 35-83, P. 21.
Reference (Deposit): BARKER, FRED, 1969, PRECAMBRIAN GEOLOGY OF THE NEEDLE MOUNTAINS, SOUTHWESTERN COLORADO: USGS PROF. PAPER 644-A.
Reference (Deposit): CROSS, WHITMAN, AND HOLE, A.D., 1910, DESCRIPTION OF THE ENGINEER MOUNTAIN QUADRANGLE: USGS FOLIO 171.
Colorado Mining Photos
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