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      Karst Feature Inventory PointsSoutheastern Minnesota is part of the Upper Mississippi Valley Karst that includes southwestern Wisconsin and northeastern Iowa. In Minnesota, surface karst features (including...
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      DNR Dimension Stone Inventory of Northern MinnesotaSpatial (GIS) data of dimension stone inventory sites in northern Minnesota. Collection began in 1989.
      
      
        
        
        
          E' possibile inoltre accedere al registro usando le API (vedi Documentazione API). 
      
      
    
  