Visitors at Mississippi River headwaters, Itasca State Park

Visitors at Mississippi River headwaters, Itasca State Park

The dam at the Mississippi headwaters as tourist destination, c.1960.

St. Anthony Falls Tunnel Collapse, October 5, 1869

On October 5, 1869, water seeped and then gushed into a tunnel underneath St. Anthony Falls creating an enormous whirlpool. The falls were nearly destroyed. It was years before the area was fully stabilized and the falls were again safe from collapse.

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