Big Slough Recreation Area is a day use facility featuring a two lane boat ramp, bank fishing, and several picnic sites. The boat ramp enables access to the Mississippi River and backwaters of pool 13.
A $5.00 daily day use fee is charged for boat ramp access. Annual passes can be purchased for $40.00.
Big Slough Recreation Area is located four miles north and one mile west of Thomson, Illinois off of State Highway 84, Thomson, IL