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Allara Tunnel

Occurrence in Saguache county in Colorado, United States with commodities Silver, Lead, Zinc, Gold, Copper, Manganese, Cadmium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10094553
MRDS ID D009236
Record type Site
Current site name Allara Tunnel

Geographic coordinates

Geographic coordinates: -106.97368, 38.01473 (WGS84)
Elevation 3109
Location accuracy 1000(meters)
Relative position 11.4 MILES N13W OF CREEDE

Site location context

Political divisions (FIPS codes)

Saguache(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Stewart Peak(quadrangle 1:24,000 scale)

Saguache(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

Grand Mesa, Uncompahgre and Gunnison National Forests(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Saguache

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 044N 001W 34 SW Colorado

Comments on the location information

  • 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

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Critical Primary
Gold Secondary
Copper Secondary
Manganese Critical Tertiary
Cadmium Tertiary

Materials information

Materials Type of material
Galena Ore
Sphalerite Ore

Analytical data

Result 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
Result 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
Result 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
Result 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

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Rhyolite Flow
    Rock description Rhyolite Flow
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Rhyolite Flow
    Rock description Rhyolite Flow

Nearby scientific data

(1) -106.97368, 38.01473
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Volcanic Field, La Garita Caldera
Type of structure Local
Structure description La Garita Caldera, San Luis Caldera

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Bondholder District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Bonnez Mining Co.
    First year 1971

Comments on the workings information

  • TUNNEL DRIVEN PROBABLY NE TO ENE 650 FT. A 130-FT-LONG DRIFT WAS DRIVEN NORTH FROM TUNNEL AT POINT 320 FT FROM PORTAL

Comments on development

  • TUNNEL DRIVEN 1966-68 BENEATH WOODMANSEE PROPERTY TO INTERSECT VEINS AT DEPTH

Reference information

Bibliographic references

  • 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

General comments

Subject category Comment text
Deposit IRREGULARLY SILICIFIED VEINS CONTAIN ERRATIC LOW-GRADE QUARTZ-PYRITE OR QUARTZ-SULFIDE MINERALIZATION. NO PERSISTENT MINERALIZING STRUCTURAL ZONE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1982 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.