canals
A chasm or gorge
The Arkansas River runs at the bottom of the Royal Gorge. The running water in the river has carved a majority of the Royal Gorge.
A canion.
A deep valley carved by a river is called a canyon. Canyons are typically characterized by steep sides and are formed over long periods of time by the erosive action of flowing water.
Ravine: A deep, narrow gorge with steep sides formed by erosion from a stream or river.
A ravine is a deep, narrow gorge with steep sides, typically carved by running water. It is smaller than a canyon and often has a stream or river flowing at the bottom.
A Gorge
Gorge is a good word, could be a ravine.
A canyon, or gorge, is a deep valley between cliffs often carved from the landscape by a river.
'une gorge' (fem.) is a French word; in French 'une gorge' is a narrow cleft with steep, rocky walls, especially one through which a stream runs (definition form dictionary.reference.com), or the throat.
its dorathy its dorathy
:DFKflrfprfmdrfvpfv