Bell Smith Springs Arch Trail is a standout hiking destination in Shawnee National Forest, IL, covering 4.0 miles with 400ft of elevation change. Stats: 4.0 miles, 400ft gain, Moderate. Type: Loop. Surface: Rocky. Time: 2 hours. Fee: Free. Dogs: Yes, on leash. Permit: No. Wildlife: deer, foxes, barred owls. Best seasons: Sandstone canyon with natural arch. Pack water, layers, and appropriate footwear. Conditions vary across IL. Leave No Trace: stay on trail, pack out all waste, respect wildlife.