Little Grassy (Illinois)
🏆🏆🏆🏆 Shawnee Gem — Scenic lake in the Shawnee Hills — popular recreation area near Giant City State Park
Little Grassy Lake is a scenic 1,000-acre lake nestled in the Shawnee Hills of southern Illinois — surrounded by rolling forested hills and sandstone bluffs. The lake is popular for fishing (largemouth bass, bluegill, channel catfish), boating, and swimming. The area’s rugged terrain — unusual for flat Illinois — was carved by the glacial boundary that left southern Illinois unglaciated. Nearby Giant City State Park (named for its massive sandstone “streets”) and the Shawnee National Forest make this region Illinois’s outdoor recreation capital.
Visitor Information
| Detail | Information |
|---|---|
| Location | Williamson County, IL |
| Entry Fee | Free |
| Lake | 1,000 acres! |
| Near | Giant City SP, Shawnee NF! |
About Little Grassy
Little Grassy Fish and Wildlife Area in Williamson County surrounds Little Grassy Lake in the scenic Shawnee Hills of southern Illinois. The lake is a quiet alternative to nearby Crab Orchard Lake — smaller, less developed, and surrounded by forest. The Southern Illinois University Touch of Nature Environmental Center operates on the lake, providing outdoor education programs.
Things to Do
Fishing for bass, catfish, and bluegill on the scenic lake, boating (10 HP limit — keeps it peaceful), hiking through the Shawnee Hills forest, hunting (seasonal), and attending Touch of Nature programs.
Insider Tips
Shawnee fishing: Little Grassy Lake in the Shawnee Hills is one of southern Illinois’s best fishing lakes — clear water, forested shores, and consistent bass fishing. Pro tip: The lake has a 10-horsepower motor limit — keeping it quiet and uncrowded. SIU connection: Southern Illinois University uses the area for outdoor education — the Touch of Nature Environmental Center offers programs on the lake.
Best Time to Visit
Spring: Bass spawn in the shallows. Summer: Swimming and kayaking on clear water. Fall: Fall color on the forested shores. Winter: Quiet fishing — bass bite on warm winter days.
Frequently Asked Questions
Why is southern Illinois so hilly?
The Shawnee Hills are the eroded remnants of an ancient upland — unglaciated terrain that escaped the Ice Age glaciers that flattened central and northern Illinois. The result is the dramatic sandstone bluffs, canyons, and rolling hills that make southern Illinois look nothing like the stereotypically flat state.
Wildlife & Nature
Little Grassy in southern Illinois provides recreation in the Shawnee Hills — a region where Ozark, Appalachian, and Gulf Coastal Plain ecological influences converge, creating one of the most biodiverse areas in the Midwest. Southern Illinois’ forests support species from all three regions — tulip poplars from the Appalachian tradition, bald cypress from the Gulf Coastal Plain, and post oaks from the Ozark influence. This convergence zone supports 40+ species of reptiles — more than anywhere else in Illinois. Timber rattlesnakes, copperheads, and cottonmouths represent the venomous species. Five-lined skinks, broadhead skinks, and fence lizards bask on rocks and logs. The area’s forests support breeding populations of worm-eating warblers and Louisiana waterthrushes.
Nearby Attractions
Giant City State Park features massive sandstone “streets” and a historic CCC lodge. Crab Orchard National Wildlife Refuge provides waterfowl viewing and recreation. Southern Illinois University in Carbondale offers cultural attractions. Shawnee National Forest — Illinois’ only national forest — provides Garden of the Gods, Bell Smith Springs, and Rim Rock. Little Egypt region has wineries and orchards. Pomona Natural Bridge is a rare Illinois geological feature. Bald Knob Cross of Peace offers panoramic views.
