What is it?

 
 
Within the Minnesota River Basin, you can visit a variety of intriguing sites from boiling springs to ancient petroglyphs to hidden waterfalls... Do you know what the following images are? (Scroll over the image for more tips). Give up? Answers.
 

 
 
 
 

 
   
       
     
 
 
 
 

This page was last updated 5/15/11