The Mississippi River forms the entire western border of Illinois, the Ohio River skirts the south, and Lake Michigan carves a divot from the state's northeastern corner. The Illinois and Chicago Rivers cut across the state and into the Second City. You'll also find dozens of lakes, ponds, and family-friendly fishing areas throughout Illinois. In these scattered waters you will find a vast assortment of fish, from bluegill to coho salmon.
Check out these Knoxville, IL fishing resources:
