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

Silent Friend

Past Producer in Boulder county in Colorado, United States with commodities Gold, Silver, Tungsten
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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. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10166210
MAS/MILS ID 0080130719
Record type Site
Current site name Silent Friend

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -105.36179, 39.99799 (WGS84)
Elevation 2158
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Boulder(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Eldorado Springs(quadrangle 1:24,000 scale)

Denver West(quadrangle 1:100,000 scale)

Denver(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 Tertiary
Silver Tertiary
Tungsten Critical Primary

Materials information

Materials Type of material
Pyrite Ore
Gold Ore
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Tennantite Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

Main Entrance (1) Granitic rocks of 1700-m.y. age group
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 Magnolia

Land status

Ownership category Private

Reference information

Bibliographic references

  • Deposit

    REF. USGS PROF PAPER # 223 PLATE 22

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.