Iguazu Falls is located where the Iguazu River tumbles over the edge of the Paraná Plateau, 23 kilometres (14 mi) upriver from the Iguazu’s confluence with the Paraná River. Numerous islands along the 2.7-kilometre-long edge divide the falls into numerous separate waterfalls and cataracts, varying between 60 to 82 metres (197 to 269 ft) high. The number of these smaller waterfalls fluctuates from 150 to 300, depending on the water level.
Devil’s Throat, Garganta del Diablo, which is the U-shaped start of the falls is often considered the most impressive part. Devil’s Throat is the highest point of the falls measuring 269 feet (82 m) high, 492.1 feet (150 m) wide and 2,296 feet (700 m) long.
Falls are on the border between the Brazilian state of Paraná and the Argentine province of Misiones, and are surrounded by two National Parks.