Atuel River

It has a mean flow of 31.8 cubic metres per second (1,120 cu ft/s), and its drainage basin covers 13,000 square kilometres (5,000 sq mi).

As it approaches the city of San Rafael, Mendoza, from the southwest, the Atuel is turned into a reservoir with an area of 96 square kilometres (37 sq mi) by the El Nihuil Dam.

Most of the Atuel's flow at this point has been redirected through a system of tunnels inside the mountains, connecting the chain of reservoirs.

The Atuel Canyon area is a major tourist attraction, featuring hotels, camping sites, country clubs and other lodging facilities.

The rapids are employed for rafting and canoeing; they are classified between class II (novice) and IV (advanced) in the International Scale of River Difficulty.