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Ohio Mine

Past Producer in Hinsdale county in Colorado, United States with commodities Silver, Gold, Copper, Lead, Zinc, Antimony, Molybdenum
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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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Production statistics
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10014747
MRDS ID D011659
Record type Site
Current site name Ohio Mine
Related records 10142467

Geographic coordinates

Geographic coordinates: -107.46035, 37.94001 (WGS84)
Elevation 3231
Location accuracy 1000(meters)
Relative position 10.0 MILES S 52 W FROM LAKE CITY

Site location context

Political divisions (FIPS codes)

Hinsdale(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Redcloud Peak(quadrangle 1:24,000 scale)

Silverton(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Geographic areas

Country State County
United States Colorado Hinsdale

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 043N 005W 31 SW Colorado

Comments on the location information

  • LOCATION GIVEN AS NE OF LAKE FORK GUNNISON RIVER BETWEEN CONFLUENCES OF COOPER CREEK AND SILVER CREEK. ELEV AND LAT-LONG GIVEN ARE FOR POSSIBLE WORKINGS (IDENTIFIED FROM AIRPHOTOS) ON FAULT CROSSING LAKE FORK ABOUT 0.4 MILE ABOVE SILVER CREEK, 2.1 MILES ESE OF WHITECROSS AND 1.9 MILES NE OF WHITECROSS MTN (UNSURVEYED SECTION). ; INFO FROM LAND.ST :1977

Commodities

Commodity Importance
Silver Primary
Gold Primary
Copper Primary
Lead Primary
Zinc Critical Tertiary
Antimony Critical Tertiary
Molybdenum Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue

Analytical data

Result ASSAY OF SAMPLE FROM QUARTZ VEIN (KRASOWSI, 1976): 0.222 OZ/TON AG,LT 0.001 OZ/TON AU, 0.014% CU, 0.03% PB, 0.01% ZN, 20 PPM MO, 80 PPM AS.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Ash-Flow Member Of Sunshine Peak Tuff
    Rock description Ash-Flow Member Of Sunshine Peak Tuff
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Megabreccia Member Of Sunshine Peak Tuff
    Rock description Megabreccia Member Of Sunshine Peak Tuff

Nearby scientific data

(1) -107.46035, 37.94001
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Volcanic Field, San Juan Depression
Type of structure Local
Structure description San Juan-Uncompahgre Calderas, Lake City Caldera, Silverton Caldera, Eureka Graben

Ore body information

  • Thickness 1.07M

Controls for ore emplacement

  • Ne-Trending Fault Cutting Tuff Within Lake City Caldera

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Park (Whitecross, Burrows Park, Adams) District

Land status

Ownership category BLM Administrative Area

Production statistics

  • Year 1906
    Period -1906
    Description Cp_Grade: ^12 To 15% Cu, 10% Zn, 50 To 60 Oz/Ton Ag, $10 To $12/Ton Au (0.48 To 0.58 Oz/Ton Au At Price Of $20.65/Oz) (Stockpiled Ore)
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 1569g/mt
    Trace Ore Zinc Zinc 10wt-pct
    Major Ore Copper Copper 14wt-pct
    Major Ore Gold Gold 15g/mt

Comments on the workings information

  • 200-FT TUNNEL INTERSECTING 100-FT-LONG INCLINED SHAFT; SECOND SHAFT OF UNKNOWN EXTENT EAST OF TUNNEL.

Reference information

Bibliographic references

  • Deposit

    BROWN, W.H., 1926, THE MINERAL ZONES OF THE WHITE CROSS DISTRICT AND NEIGHBORING DEPOSITS IN HINSDALE COUNTY, COLORADO: MINES MAG., V. 15, NO. 11, P. 5-15.

  • Deposit

    LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.

  • Deposit

    WOOLSEY, L.H., 1907, LAKE FORK EXTENSION OF THE SILVERTON MINING AREA, COLORADO: USGS BULL. 315, P. 26-30.

  • Deposit

    KRASOWSKI, D.J., 1976, GEOLOGY AND ORE DEPOSITS OF BURROWS PARK, HINSDALE COUNTY, COLORADO STATE UNIV. M.SC. THESIS, 111 P.

General comments

Subject category Comment text
Deposit VEIN LIES IN FAULT TRENDING GENERALLY N 70 E AND CUTTING SUNSHINE PEAK TUFF AND MEGABRECCIA WITHIN LAKE CITY CALDERA. WOOLSEY (1907) OBSERVED ORE TO OCCUR IN SMALL, NORTH-PITCHING SHOOTS, BEING CONSIDERABLY BROKEN, CRUSHED, AND MIXED WITH GOUGE. ORE REPORTEDLY OCCUPIED INTERSTICES OF OLDER FISSURE BRECCIA AND SLIGHTLY IMPREGNATED WALLS. SILIFICATION AND PYRITIZATION EXTENDED INTO WALLROCKS FOR CONSIDERABLE DISTANCE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-84 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

External references

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.