The East River begins near Askeaton in southern Brown County and flows through the east side of De Pere, Allouez and Green Bay, Wisconsin, where it converges with the Fox River.

The Devil River played an important part in the European settlement of Brown County.

[5] He went deer hunting on a boat on the Devil River and nearly drowned before his companion saved him.

[8] During the Black Hawk War of 1832, the river formed one of the defensive boundaries of American forces in Brown County.

[9] In the early 1840s, it is alleged that Colonel Zachary Taylor tried to cross the Devil River during a spring flood.