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

Poorman Tunnel

Past Producer in Clear Creek county in Colorado, United States with commodities Gold, Lead, Silver, 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. 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 10190230
MRDS ID DC05248
MAS/MILS ID 0080191210
Record type Site
Current site name Poorman Tunnel
Alternate or previous names Poor Man, Poorboy Vein
Related records 10108386

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -105.62003, 39.74221 (WGS84)
Elevation 3089
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Clear Creek(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Idaho Springs(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)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Colorado Clear Creek

Commodities

Commodity Importance
Gold Primary
Lead Tertiary
Silver Tertiary
Zinc Critical Tertiary

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Nearby scientific data

Main Entrance (1) -105.62003, 39.74221
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 National Forest

Production statistics

  • Year 1935
    Period 1902-09, 1921, 1933-35
    Material ore
    Ore mined 218.49mt
    Accuracy Accurate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace Zinc Zinc 72.12mt
    Trace Silver Silver 256883.64g
    Trace Lead Lead 283.49mt
    Major Gold Gold 2566.03g

Reference information

Bibliographic references

  • Deposit

    USGS Bull1032, p. 117

  • Deposit

    USGS PP 63, p. 319

Reporter information

Type Date Name Affiliation Comment
Reporter 13-FEB-1978 Intermountain Field Operations Center (IFOC) U.S. Bureau of Mines
Updater 17-JUL-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.