Authion

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Authion
The canalized river at Brain-sur-l'Authion

The canalized river at Brain-sur-l'Authion

Data
Water code FR :  L9-0220
location France , Center-Val de Loire and Pays de la Loire regions
River system Loire
Drain over Loire  → Atlantic Ocean
source in the municipality of Hommes
47 ° 25 ′ 47 ″  N , 0 ° 18 ′ 3 ″  E
Source height approx.  86  m
muzzle in the municipality of Sainte-Gemmes-sur-Loire in the Loire Coordinates: 47 ° 25 ′ 22 ″  N , 0 ° 33 ′ 3 ″  W 47 ° 25 ′ 22 ″  N , 0 ° 33 ′ 3 ″  W
Mouth height approx.  16  m
Height difference approx. 70 m
Bottom slope approx. 0.7 ‰
length approx. 100 km
Left tributaries Lane , Petit Lane
Right tributaries Lathan , Couasnon
Flowing lakes Étang du Mur
Medium-sized cities Saumur
Small towns Les Ponts-de-Cé

The Authion (in the upper reaches: Changeon ) is a river in France that runs in the regions of Center-Val de Loire and Pays de la Loire . It rises as Changeon in the municipality of Hommes , initially drains in a westerly direction, then swings to the south and reaches the Loire Valley at Bourgueil . Here it swings back to the west and from now on runs parallel to the Loire at a distance of a few kilometers. At Saint-Nicolas-de-Bourgueil , around the confluence of its left tributary Lane , it suddenly changes its name to Authion and, after a total of 100 kilometers, flows into the municipality of Sainte-Gemmes-sur-Loire , not far from Angers , as a right tributary Loire. On its way, the river crosses the Indre-et-Loire and Maine-et-Loire departments and the Loire-Anjou-Touraine Regional Nature Park . In the lower reaches the river was straightened and canalized . However, shipping has already ceased.

Places on the river

Web links

Individual evidence

  1. ↑ a b geoportail.fr (1: 16,000)
  2. ↑ Authion at SANDRE (French)