Great Smoky Mountains National Park
Streams and waterfalls

The Great Smoky Mountains National Park is located entirely within the Tennessee Valley, the watershed of the Tennessee River, and contains an estimated 2,900 miles (4,700 km) of streams. The Little Tennessee River runs along the southwestern border of the park, which is impounded by Chilhowee Dam, Calderwood Dam, Cheoah Dam, and Fontana Dam along the boundary. The Pigeon River flows through a deep gorge near the eastern boundary of the park, separating the range from the Bald Mountains to the east. The Plott Balsams border the range to the south. Several smaller rivers have their source in the park, including the three prongs of the Little Pigeon River, the Oconaluftee River, and the Little River. Other major streams include Hazel Creek and Eagle Creek in the southwest, Raven Fork near Oconaluftee, Cosby Creek near Cosby, and Roaring Fork near Gatlinburg. More than 100 prominent waterfalls are located within the park. The tallest is Ramsey Cascades, located at the base of Mt. Guyot. This waterfall drops 100 feet (30 m) over rock outcroppings into a small pool below. Rainbow Falls is the tallest single-drop waterfall, plunging 80 feet (24 m) along LeConte Creek. Other popular waterfalls include Grotto Falls, Laurel Falls, Abrams Falls, Mingo Falls, Mouse Creek Falls, and Hen Wallow Falls.
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