Minnesota Public Radio slideshow:
Should the Mississippi River gorge be restored?
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St. Anthony Falls had a vertical drop of 16-and-a-half feet in the 1850s. (Photo by Joel E. Whitney/MN Historical Society Collection)

St. Anthony Falls had a vertical drop of 16-and-a-half feet in the 1850s.

(Photo by Joel E. Whitney/MN Historical Society Collection)
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