Illinois River (Arkansas River)

The Illinois River, a scenic tributary of the Arkansas River, winds through the Ozark region along the Arkansas-Oklahoma border and serves as a premier destination for recreational activities. Originating in northwest Arkansas, it flows through rolling hills and forested landscapes before entering Tenkiller Ferry Lake in Oklahoma and ultimately joining the Arkansas River. The river is especially popular with paddlers: the newly designated Upper Illinois River Water Trail offers enjoyable floats along a 15.5-mile stretch from Chamber Springs Access in Arkansas to the WOKA Whitewater Park in Oklahoma. With a generally gentle to moderate current featuring pools, riffles, and optional Class II rapids at the whitewater parks in Siloam Springs and near Watts, it appeals to families, beginners, and experienced enthusiasts alike. Numerous outfitters provide canoe, kayak, raft, and tubing rentals along with shuttle services, enabling half-day or full-day adventures. In addition to paddling, the clear, cool waters invite swimming and splashing, while anglers enjoy excellent fishing for smallmouth bass and other species. The surrounding natural beauty also supports birdwatching, riverside hiking, and peaceful camping. Floatable year-round, the Illinois River is a true gem for those seeking nature, adventure, and relaxation in one of the most beautiful areas of the central United States.