1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Milan

Past Producer in Boulder county in Colorado, United States with commodities Gold, Silver
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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 10214746
MRDS ID DC03709
MAS/MILS ID 0080130530
Record type Site
Current site name Milan
Related records 10017526

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -105.38865, 40.01082 (WGS84)
Elevation 2133

Site location context

Political divisions (FIPS codes)

Boulder(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Gold Hill(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)

Federal lands

Arapaho and Roosevelt 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 Boulder

Commodities

Commodity Importance
Gold Primary
Silver Tertiary

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

Ore Body (1) -105.38865, 40.01082
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 Boulder Tungsten

Land status

Ownership category Private

Production statistics

  • Year 1880
    Period 1870-1880
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Gold Gold 17g/mt

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 17-NOV-1983 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines
Updater 18-MAY-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.