Little Grassy Lake Boat Ramp provides access to a 1,000-acre lake within Crab Orchard National Wildlife Refuge with a 10-horsepower motor limit.

The ramp accommodates various watercraft including motorboats, canoes, kayaks, and pontoons, with boat rentals available on-site and a marina nearby. A user permit is required to access the refuge; contact the visitor center at 618-997-3344 for details.