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  3. Mineral Resource Data System (MRDS)

Penn Group

Past Producer in Lake county in Colorado, United States with commodities Gold, Copper, Iron
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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. Mineral occurrence model information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10311050
Record type Site
Current site name Penn Group
Alternate or previous names includes Penn No. 1, 2, 3, Old Breece Iron, Ballard, Big Six, Little Prince, Nettie Morgan, Presiden

Geographic coordinates

Geographic coordinates: -106.24617, 39.24943 (WGS84)
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Lake(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Sherman(quadrangle 1:24,000 scale)

Leadville(quadrangle 1:100,000 scale)

Leadville(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Arkansas Headwaters(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Geographic areas

Country State County
United States Colorado Lake

Comments on the location information

  • On the NW side of Breece Hill, about 2 miles east of Leadville, in S/2 sec 20, T 9 S, R 79 W.

Commodities

Commodity Importance
Gold Primary
Copper Primary
Iron Primary

Materials information

Materials Type of material
Chalcocite Ore
Gold Ore
Hematite Ore
Magnetite Ore
Pyrite Ore
Serpentine Gangue

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Nearby scientific data

(1) -106.24617, 39.24943
ListMap

Economic information

Comments on the geologic information

  • Massive replacement deposits of magnetite-specularite and a copper-gold-bearing vein are also present.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic

Mining district

District name Leadville District

Comments on the production information

  • About 300,000 tons of iron ore (mostly hematite) was shipped as flux for nonferrous smelters or to iron-ore smelters.

Comments on the reserve resource information

  • Several exploration targets are outlined. (Sunshine files, 1993)
  • 35,000 tons of dump material grade 0.16 oz/ton Au and 2.1 oz/ton Ag. (Sunshine files)

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 16-FEB-2006 Beach, Richard A. Colorado Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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.