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  3. Mineral Resource Data System (MRDS)

Logan

Past Producer in Boulder county in Colorado, United States with commodities Gold, Silver, Tungsten, Lead, 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. Mineral occurrence model information
  7. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mining district
  10. Land status
  11. Production statistics
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10263388
MRDS ID DC05177
MAS/MILS ID 0080130482
Record type Site
Current site name Logan
Alternate or previous names Logan & Sunbeam, Upper Logan
Related records 10018297

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -105.37409, 40.03339 (WGS84)
Elevation 2097
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Boulder(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Boulder(quadrangle 1:24,000 scale)

Estes Park(quadrangle 1:100,000 scale)

Greeley(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

St. Vrain(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Colorado Boulder

Commodities

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

Mineral occurrence model information

Model code 84
USGS model code 22b
Deposit model name Alkaline Au-Te (Au-Ag-Te veins)
Mark3 model number 80

Nearby scientific data

Main Entrance (1) -105.37409, 40.03339
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 Gold Hill

Land status

Ownership category Private

Production statistics

  • Year 1885
    Period 1879-1885
    Accuracy Estimate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Silver Silver 78g/mt
    Major Gold Gold 34g/mt

Reference information

Bibliographic references

  • Deposit

    REF. VANDERWILT "MINERAL RESOURCES OF COLO." P 320

  • Deposit

    REF USGS PROF PAPER 223 PLATE 3

Reporter information

Type Date Name Affiliation Comment
Reporter 17-NOV-1983 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines

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.