Iguazu Falls, Iguazú Falls, Iguassu Falls or Iguaçu Falls are waterfalls of the Iguazu River on the border of Brazilian state Paraná and Argentine province Misiones.
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.[1] Numerous islands along the 2.7-kilometre-long (1.7 mi) 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. About half of the river's flow falls into a long and narrow chasm called the Devil's Throat. The Devil's Throat is U-shaped, 82 metres high, 150 m wide, and 700 m long.