The Tallulah Gorge is a gorge formed by the Tallulah River cutting through the Tallulah Dome rock formationThe Tallulah Gorge is a gorge formed by the Tallulah River cutting through the Tallulah Dome rock formation. The gorge is approximately 2 miles (3 km) long and features rocky cliffs up to 1,000 feet (300 m) high. Through it, a series of falls known as Tallulah Falls drop a total of 150 metres (490 ft) in one mile (1.6 km). Tallulah Falls is composed of six separate falls: l'Eau d'Or (46 ft (14 m)), Tempesta (76 ft (23 m)), Hurricane (the tallest at 96 feet (29 m)), Oceana (50 ft (15 m)), Bridal Veil (17 ft (5.2 m)), and Lovers Leap (16 ft (4.9 m)). The Tallulah Gorge is located next to the town of Tallulah Falls, Georgia. Tallulah Gorge State Park protects much of the gorge and its waterfalls. The gorge is one of the Seven Natural Wonders of Georgia. Just above the falls is Tallulah Falls Lake, created in 1913 by a hydroelectric dam built by Georgia Railway and Power (now Georgia Power) in order to run Atlanta's streetcars. The dam still collects and redirects most of the water via a 6,666-foot (2,032 m) tunnel sluice or penstock around the falls to an electricity generation station downstream that is 608 feet (185 m) lower than the lake, except for a few days each year. The days when water is released are very popular for recreation, such as kayaking and whitewater rafting.