The Tallulah River and the Chattooga River both empty into Lake Tugaloo which is on the Georgia and South Carolina line. The movie Deliverence was filmed on the Chattooga. This section of the Tallulah through the gorge now only has water released into it a few days each year. The rest of the time the water goes through a tunnel to a hydroelectric plant. Upstream of the gorge the river is mostly dammed into a series of lakes. The upper part of the river can be run after a rain, but is very dangerous with many undercut rocks and log strainers.
From Wikipedia:
http://www.youtube.com/watch?v=yZHX3PIhcW4
From Wikipedia:
Not recommended for dial-up.a series of falls known as Tallulah Falls, drop a total of 150 meters or 500 feet in one mile (1.6 km). Tallulah Falls is actually composed of six separate falls: l'Eau d'Or (46 feet), Tempesta (76 feet), Hurricane (the tallest at 96 feet), Oceana (50 feet), the smooth "sliding rock" at Bridal Veil (17 feet) and Lovers Leap (16 feet).
http://www.youtube.com/watch?v=yZHX3PIhcW4