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The valley of the Layon in Chaudefonds-sur-Layon

The valley of the Layon in Chaudefonds-sur-Layon

Water code FRM5-0200
location France , Nouvelle-Aquitaine regions and Pays de la Loire
River system Loire
Drain over Loire  → Atlantic Ocean
source in the municipality of Saint-Maurice-la-Fougereuse,
47 ° 2 ′ 1 ″  N , 0 ° 28 ′ 7 ″  W
Source height approx.  120  m
muzzle at Chalonnes-sur-Loire , in the Loire coordinates: 47 ° 21 '2 "  N , 0 ° 45' 16"  W 47 ° 21 '2 "  N , 0 ° 45' 16"  W
Mouth height approx.  15  m
Height difference approx. 105 m
Bottom slope approx. 1.2 ‰
length 90 km
Catchment area 950 km²
Drain at the Saint-Lambert-du-Lattay gauge MQ
4 m³ / s
Left tributaries Hyrôme , Lys , Jeu
Reservoirs flowed through Étang de Beaurepaire
Small towns Chalonnes-sur-Loire

The Layon is a river in France that has its source in the Nouvelle-Aquitaine region and runs largely in the Pays de la Loire region . Its source is located in the municipality of Saint-Maurice-la-Fougereuse . The river initially drains to the northeast, then turns in a northwest direction and after 90 kilometers flows into the Loire as a left tributary at Chalonnes-sur- Loire . On its way, the Layon crosses the Deux-Sèvres and Maine-et-Loire departments .


The Chenin vines for the Coteaux-du-Layon , but also for the Chaume , the Quarts-de-Chaume and the Bonnezeaux wine grow on the slopes of the Layon Valley .

Places on the river

Web links

Commons : Layon River  - collection of pictures, videos and audio files


  1. a b (1: 16,000)
  2. a b The information on the length of the river is based on the information about the Layon at SANDRE (French), accessed on November 26, 2011, rounded to full kilometers.
  3. a b Banque Hydro - M5222010 Le Layon à Saint-Lambert-du-Lattay (menu item: Synthèse)