Boreholes  last updated: 2-02-2026 

MnDOT Geotechnical Investigation Information Interchange Internet Interface (GI5)Questions
  Open the Help Panel
  Zoom in on the map
  Zoom out to the full extent of the map
  Select a query area on the map and add it to your query
  Zoom to the selected boreholes on the map
  Remove the query area from the map and from your query
  Open the Search Panel
  When visible at higher zoom levels, toggle to show/hide borehole labels (hint - labels are visible in "Street View")
  From the Search Panel, toggle to enable/disable Help Mode on the Search Panel
  Click or touch a marker on the map to display it's infowindow
   Boring Log Descriptive Terminology

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