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  Welcome to the Minnesota Geological Survey

  • Confusion HillVirginia Minnesota
  • ConglomerateNear Rainy Lake
  • Knife RiverAgate
  • Poplar River
  • Pink Zeolite with calcite
  • Minnesota lake
  • Diabase dike
  • Thomsonite
  • White Thomsonite
  • Lake Superiorcobble beach
  • Minnesota agate
  • Minnesota iron formationStromatolites
  • Weatherd granite outcropsRockville Minnesota
  • Soudan Iron FormationSoudan, Minnesota
Confusion Hill1 Conglomerate2 Knife River3 Poplar River4 Pink Zeolite with calcite5 Minnesota lake6 Diabase dike7 Thomsonite8 White Thomsonite9 Lake Superior10 Minnesota agate11 Minnesota iron formation12 Weatherd granite outcrops13 Soudan Iron Formation14
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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.

Minnesota Geological Survey
2642 University Avenue W.

St. Paul, Minnesota 55114-1032

Telephone: (612) 627-4780
Map Sales: (612) 627-4782
Email MGS