Three riverside towns surround the Lake, Léran to the west, Chalabre to the east on a small part (Aude) and Montbel to the north.
The Interdepartmental Institution for the Development of the Montbel Dam (IIABM) is the owner and manager of the lake. It is she who has the power to authorize access to water and must be consulted for any project related to the site.
The vegetation :
High forests and coppices of various species coexist, sheltering many qualities of flowers. Some points of view are reminiscent of Canadian landscapes but a few islets by contrast would evoke Africa, when the waters drop at the end of summer.
An observatory has been set up by the Association des Naturalistes de l'Ariège, in order to better understand and observe the many birds that live together on this site.
The species of fish are also very varied and the large predators (carp, catfish, etc.) have earned the Lake a good reputation among European audiences.
The exceptional site of Lake Montbel and its vast area (570 hectares) are assets for aquatic relaxation, water sports, family or sports hiking, fishing, ornithology. Tourist facilities in Léran and Montbel make it possible to offer hospitality and the practice of leisure.
Sailing school member of the FFV. Pedal boats, canoeing, fishing, rowing and electric boats, "cataminus", 4-seater sailboats, privileged site for bird watching, hiking and cycling trails. Swimming authorized and supervised from 01/07 to 31/08.