Dunbar Pit and Mill

Producer in Freeborn county in Minnesota, United States with commodity Sand and Gravel, Construction
Warning: This record lacks important information: bibliographic references, which we consider necessary for a comprehensive report.
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. Land status
  9. Ownership information
  10. Links to other databases
  11. Reporter information

Geologic information

Identification information

Deposit ID 10219674
MAS/MILS ID 0270470013
Record type Site
Current site name Dunbar Pit and Mill
Alternate or previous names Emil Olson Inc

Geographic coordinates

Point of reference Plant
Geographic coordinates: -93.60462, 43.5464 (WGS84)
Elevation 378
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Freeborn(county)

Minnesota(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Conger(quadrangle 1:24,000 scale)

Albert Lea(quadrangle 1:100,000 scale)

Mason City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Winnebago(hydrologic unit)

Iowa(hydrologic accounting unit)

Upper Mississippi-Iowa-Skunk-Wapsipinicon(hydrologic subregion)

Upper Mississippi(hydrologic region)

Geographic areas

Country State County
United States Minnesota Freeborn

Commodities

Commodity Importance
Sand and Gravel, Construction Primary

Nearby scientific data

Plant (1) -93.60462, 43.5464

Economic information

Economic information about the deposit and operations

Operation type Surface
Development status Producer
Commodity type Non-metallic
Significant No

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Dunbar Et Al
    ID 2101832
    Year 1978
  • Type Operator
    Owner Emil Olson Inc
    ID 2101832
    Year 1978

Reference information

Reporter information

Type Date Name Affiliation Comment
Reporter 14-AUG-1987 Wheaton / Jy U.S. Bureau of Mines

Beyond USGS

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

Current status (per MSHA)

StatusAbandoned since 08/06/1979
MSHA mine ID2101832
Mine name (MSHA)Dunbar Pit And Mill
Current operatorEmil Olson Inc
Current controller (parent)Olson Roger Emil
Mine typeSurface (Metal / non-metal)

MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.

Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.