Marshall SFWA Access provides public boat ramp access to the Illinois River and its backwater areas including Babb Slough, with free launching and no horsepower restrictions, though shallow waters and siltation can make navigation challenging during low water periods.

The area headquarters at 236 State Route 26 in Lacon offers a fishing channel, hunter check station, and parking facilities. Visitors should check current water levels before visiting, as backwater accessibility varies seasonally.