Almost 500 river miles below its Welsh Fencing source at Lake Itasca, the Mississippi River tumbles over its only waterfall in downtown Minneapolis.Dubbed the Falls of Saint Anthony by explorer Father Louis Hennepin, the falls were formed by glacial action more than 10,000 years ago.The magnificent waterfall was once over 200 feet high and located in downtown St.
Paul.Over the years, the falls migrated upstream to their present protection location in downtown Minneapolis.