The Allara Tunnel is a silver, lead, and zinc mine located in Saguache county, Colorado at an elevation of 10,200 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: 10,200 Feet (3,109 Meters)
Commodity: Silver, Lead, Zinc
Lat, Long: 38.01472, -106.97306
Map: View on Google Maps
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Allara Tunnel MRDS details
Site Name
Primary: Allara Tunnel
Commodity
Primary: Silver
Primary: Lead
Primary: Zinc
Secondary: Gold
Secondary: Copper
Tertiary: Manganese
Tertiary: Cadmium
Location
State: Colorado
County: Saguache
District: Bondholder District
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.
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Bonnez Mining Co.
Years: 1971 -
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
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: San Juan Volcanic Field, La Garita Caldera
Type: L
Description: La Garita Caldera, San Luis Caldera
Alterations
Not available
Rocks
Name: Rhyolite
Role: Associated
Age Type: Host Rock Unit
Age Young: Oligocene
Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene
Name: Rhyolite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene
Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene
Analytical Data
Analytical Data: NO. 52, 5, 1, 1, 0.3, GT 5000, 20, 700, 10, 20, 300, 10, 7, 7000, 100, 100, 10000, 100, 0.01 OZ/TON AU, 0.80 OZ/TON AG, 0.050% CU, 0.50% PB, 0.81% ZN, 0.003% CD, 0.36% MN. ALL ARE DUMP SAMPLES
Analytical Data: NO. 51, 2, 1, 2, 0.2, 2000, 15, 700, 5, 10, 20, LT 5, 5, 1500, 100, 20, 1500, 100, 0.01 OZ/TON AU, 1.74 OZ/TON AG, 0.08% PB, 0.06% ZN
Analytical Data: NO. 50, 2, 0.5, 0.5, 0.1, 1500, 20, 700, 5, 20, 70, 5, 5, 2000, 100, 30, 3000, 100, 0.005 OZ/TON AU, 0.70 OZ/TON AG, 0.08% PB, 0.07% ZN
Analytical Data: STEVEN AND BIENIEWSKI RAN SEMIQUANTITATIVE SPECTROGRAPHIC ANALYSES ON GRAB AND CHIP SAMPLES FROM VARIOUS DUMPS IN MINE AREA. EACH SET OF VALUES IS SAMPLE NUMBER, % FE, % MG, % CA, % TI, PPM MN, PPM AG, PPM BA, PPM CO, PPM CR, PPM CU, PPM MO, PPM NI, PPM PB, PPM SR, PPM V, PPM AN, PPM ZR, AND VARIOUS FIRE ASSAYS FOR BASE AND PRECIOUS AND OTHER METALS (LT=LESS THAN, TR=TRACE): NO. 49, 5, 2, 5, 0.5, 1000, 0.7, 1000, 20, 20, 50, 5, 10, 150, 500, 200, LT 200, 100, 0.005 OZ/TON AU, 0.26 OZ/TON AG
Materials
Ore: Sphalerite
Ore: Galena
Comments
Comment (Location): ALONG EAST SIDE OF SPRING CR NEAR WOODMANSEE MINE IN UNSURVEYED SECTION. LAT-LONG IS APPROX. CENTER OF SW SIDE OF CLAIMS BLOCK ; INFO FROM LAND.ST :1976; PREVIOUS QUAD DESIGNATION = MONTROSE 1:250000
Comment (Development): TUNNEL DRIVEN 1966-68 BENEATH WOODMANSEE PROPERTY TO INTERSECT VEINS AT DEPTH
Comment (Deposit): IRREGULARLY SILICIFIED VEINS CONTAIN ERRATIC LOW-GRADE QUARTZ-PYRITE OR QUARTZ-SULFIDE MINERALIZATION. NO PERSISTENT MINERALIZING STRUCTURAL ZONE.
Comment (Workings): TUNNEL DRIVEN PROBABLY NE TO ENE 650 FT. A 130-FT-LONG DRIFT WAS DRIVEN NORTH FROM TUNNEL AT POINT 320 FT FROM PORTAL
References
Reference (Deposit): STEVEN, T.A., AND BIENIEWSKI, C.L., 1977, MINERAL RESOURCES OF THE LA GARITA WILDERNESS, SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS BULL. 1420, ANALYSES 49, 50, 51, AND 52
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