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

Longfellow

Past Producer in Boulder county in Colorado, United States with commodities Gold, Silver, Copper
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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. Host and associated rocks
  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 10262829
MRDS ID DC04710
MAS/MILS ID 0080130484
Record type Site
Current site name Longfellow
Related records 10108331

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -105.36428, 40.13334 (WGS84)
Elevation 2469

Site location context

Political divisions (FIPS codes)

Boulder(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lyons(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
Copper Primary

Materials information

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

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

Ore Body (1) -105.36428, 40.13334
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 Jamestown

Land status

Ownership category Private

Production statistics

  • Year 1932
    Period 1901-1932
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major ore Copper Copper 103.87mt
    Trace ore Silver Silver 1048125.1g 223g/mt
    Major ore Gold Gold 49641.15g 11g/mt

Comments on the production information

  • More than $75,000

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

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.