
The Pongo de Mainique is a
pongo (canyon) in
Peru, being 45 metres (50 yd) wide and 3 kilometres (2 mi) long, with 900 metres (3,000 ft) to 300 metres (1,000 ft) high cliffs
[1][2]. It is the only break in the entire
Cordillera Vilcabamba Mountain Range. It also divides the
Urubamba River (a
headwater of the
Amazon River) between Upper Urubamba and Lower Urubamba. It is considered the most dangerous
whitewater pass on the Urubamba; however, many boats traverse it, depending on seasonal river conditions. It is crossed by the
Inca Bridge, ancient secret entrance to the
Machu Picchu.