Minnesota Geological Survey Header Image

  Welcome to the Minnesota Geological Survey

  • Confusion HillVirginia Minnesota
  • ConglomerateNear Rainy Lake
  • Sawtooth RangeGrand Marais
  • Knife RiverAgate
  • Poplar River
  • Pink Zeolite with calcite
  • White Iron LakeEly Minnesota
  • Lake Superior outcropGrand Portage Minnesota
  • Diabase dike
  • Thomsonite
  • White Thomsonite
  • Cobble beachLake Superior
  • Dunka pitBabbitt Minnesota
  • Agate
  • Minnesota iron formation
  • quarry face in Morton gneissMorton Minnesota
  • detail of Morton GneissMorton Minnesota
  • Sioux Quartzite conglomerateNew Ulm Minnesota
  • calyx cores in Morton GneissMorton Minnesota
  • inclusion in Morton GneissMorton Minneosta
  • Weatherd granite outcrops
  • Soudan iron formation
  • State aeromagnetic maparomagnetic survey aircraft
  • Vermilion Granitic ComplexRay Minnesota
  • Jordan Sandstone intraclastsWinona County
  • Jordan Sandstone and Oneota DolomiteWinona County
  • Quartz Sand
  • Minnehaha FallsMinneapolis
  • St. Peter sandstone, Glenwood shale and Platteville limestoneSt. Paul
  • Minnehaha FallsMinneapolis
  • Columnar jointing in intrusive rocksSilver Bay
  • Fractured Ordovician Carbonate RockFillmore County
Photo Slider HTML by WOWSlider.com v3.8

The Minnesota Geological Survey is a research and service arm of the Newton Horace Winchell School of Earth Sciences at the University of Minnesota. It investigates the geology of Minnesota and provides basic public information on the geology of the state. The Survey works with state, county, and regional offices to set up geologic data bases and provide technical guidance for water resource planning, land management and mineral exploration policy, energy system development, and other planning and resource management activities.

What's New

Search the MGS web page

facebook

Map Sales: (612) 627-4782
Email MGS