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

Gem

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

Geologic information

Identification information

Deposit ID 10166527
MAS/MILS ID 0080190660
Record type Site
Current site name Gem
Alternate or previous names Gem Shaft, Freighter's Friend

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -105.51479, 39.76109 (WGS84)
Elevation 2774

Site location context

Political divisions (FIPS codes)

Clear Creek(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Central City(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
Gold Primary
Silver Tertiary
Copper Secondary
Lead Secondary
Zinc Critical Secondary

Nearby scientific data

Ore Body (1) -105.51479, 39.76109
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 Central City

Land status

Ownership category Private

Production statistics

  • Year 1939
    Period 1902-1939
    Material ore
    Ore mined 98212.33mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Minor Zinc Zinc 645698.71mt
    Minor Lead Lead 3926540.49mt
    Minor Copper Copper 588285.71mt
    Trace Silver Silver 35522508.06g
    Major Gold Gold 2072176.11g

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.