Alagnon

The Alagnon is a French river that starts in the Massif Central within the Regional Natural Park of the Volcanoes of Auvergne () and that flows through the Auvergne-Rhône-Alpes region. It is a left tributary of the Allier.

Geography
The Alagnon river has a length of  and a drainage basin with an area of . 

Its average yearly discharge (volume of water which passes through a section of the river per unit of time) is  at Lempdes-sur-Allagnon in the Haute-Loire department.

Average monthly discharge (m3/s) at Lempdes-sur-Allagnon (50 years)

Course
The Alagnon river starts  in the Mounts of Cantal (Massif Central), near the Puy Bataillouse mountain, commune of Laveissière, at an altitude of about , in the Cantal department. First, it flows to the east, near the Super Lioran ski resort, and gets into a gorge and, then, into a valley near Murat. The river flows in general to the northeast and gets into deep gorges in Lempdes-sur-Allagnon.

The Alagnon river flows through the Auvergne-Rhône-Alpes region, 3 departments and 23 communes. Two communes are named after the river: La Chapelle-d'Alagnon and Lempdes-sur-Allagnon. It flows through the following communes, among others:
 Auvergne-Rhône-Alpes region
 Cantal department:  Laveissière, Murat, La Chapelle-d'Alagnon, Neussargues-Moissac, Ferrières-Saint-Mary, Molompize, Massiac
 Haute-Loire department: Grenier-Montgon, Torsiac, Lempdes-sur-Allagnon
 Puy-de-Dôme department: Charbonnier-les-Mines, Beaulieu, Auzat-la-Combelle

Finally, it flows into the Allier river in the town of Auzat-la-Combelle, in the place known as Le Saut du Loup, in the Puy-de-Dôme department.

 Main tributaries 
The main tributaries, over 20 km long,  of the Cère river are:

Left tributaries:
 Allanche - 30.5 km
 Sianne - 33.1 km
 Bave - 22 km
 Auze - 17.5

Right tributaries:
 Arcueil - 37.8 km
 Alagnonnette - 20 km
 Violette - 15.4 km

Gallery

Related pages
 List of rivers of France

References

Category:Rivers of Auvergne-Rhône-Alpes