Boulogne (river)

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Boulogne
Aerial view of the Lac de Grand Lieu

Aerial view of the Lac de Grand Lieu

Data
Water code FR :  M8-0260
location France , Pays de la Loire region
River system Loire
Drain over Acheneau  → Loire  → Atlantic Ocean
source in the municipality of Saint-Martin-des-Noyers,
46 ° 44 ′ 38 ″  N , 1 ° 12 ′ 24 ″  W
Source height approx.  102  m
muzzle below Saint-Philbert-de-Grand-Lieu in the lake Lac de Grand Lieu Coordinates: 47 ° 4 ′ 5 ″  N , 1 ° 40 ′ 34 ″  W 47 ° 4 ′ 5 ″  N , 1 ° 40 ′ 34 ″  W
Mouth height approx.  3  m
Height difference approx. 99 m
Bottom slope approx. 1.1 ‰
length 87 km
Left tributaries Logne
Right tributaries Issoire
Flowing lakes Lac de Grand Lieu
Small towns Saint-Philbert-de-Grand-Lieu

The Boulogne is a river in France that runs in the Vendée and Loire-Atlantique departments in the Pays de la Loire region . It rises in the municipality of Saint-Martin-des-Noyers , generally drains in a north-westerly direction, reaches the Pays de Retz landscape and flows into the Lac de Grand-Lieu after 87 kilometers below Saint-Philbert-de- Grand-Lieu . This wetland is a natural landscape worth preserving and registered under Natura 2000 under code FR5200625. The only drainage of this lake is the river Acheneau , the Boulogne can therefore be classified as a tributary of the Acheneau.

Places on the river

Web links

See also

Individual evidence

  1. ↑ a b geoportail.fr (1: 16,000)
  2. ↑ a b The information on the length of the river is based on the information on the Boulogne from SANDRE (French), accessed on November 24, 2011, rounded to full kilometers.