Duck hunters returning after hunting on Heron Lake, c.1887. Heron Lake, in southern Minnesota, attracted many market hunters by the turn of the twentieth century.
Falls of St. Anthony, c.1865. Photograph by Joel Emmons Whitney. Water power provided the energy for the saw and flour mills that put Minneapolis on the map.
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.