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Platts Big Chance

Past Producer in Clear Creek county in Colorado, United States with commodities Copper, Gold, Lead, Silver, Zinc
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10166917
MAS/MILS ID 0080191207
Record type Site
Current site name Platts Big Chance

Geographic coordinates

Point of reference Town
Geographic coordinates: -105.6342, 39.76082 (WGS84)
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Clear Creek(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Empire(quadrangle 1:24,000 scale)

Denver West(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Clear(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Colorado Clear Creek

Commodities

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

Materials information

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

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

Town (1) -105.6342, 39.76082
ListMap

Economic information

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Dumont

Land status

Ownership category Unknown

Production statistics

  • Year 1935
    Period 1910-35
    Material ore
    Ore mined 2060.91mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Zinc Zinc 48906.32mt
    Trace Silver Silver 1271759.13g
    Trace Lead Lead 107121.73mt
    Major Gold Gold 4758.83g
    Trace Copper Copper 3215.06mt

Comments on the production information

  • Production information is combined with Aubrey, Columbian chief, Franklin County and Platts mines. Developed by the Princess of India tunnel.

Reference information

Bibliographic references

  • Deposit

    REF:CBM ANNUAL REPORT 1923 OWN/OP:SMITH LAWSON CO.

  • Deposit

    USGS OFR 67-109, p. 51

Reporter information

Type Date Name Affiliation Comment
Reporter 17-NOV-1983 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines
Updater 27-JUL-0007 Melton, Greg U.S. 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.