Doue (river)

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Doue
The Doue at Roc Branlant

The Doue at Roc Branlant

Data
Water code FR :  R1140530
location France , Nouvelle-Aquitaine region
River system Charente
Drain over Bandiat  → Tardoire  → Bonnieure  → Charente  → Atlantic Ocean
source in the municipality of Piégut-Pluviers
45 ° 36 ′ 54 ″  N , 0 ° 42 ′ 45 ″  E
Source height approx.  280  m
muzzle in the municipality of Javerlhac-et-la-Chapelle-Saint-Robert in the Bandiat coordinates: 45 ° 33 ′ 45 ″  N , 0 ° 34 ′ 16 ″  E, 45 ° 33 ′ 45 ″  N , 0 ° 34 ′ 16 ″  E
Mouth height approx.  120  m
Height difference approx. 160 m
Bottom slope approx. 8.9 ‰
length 18 km
Reservoirs flowed through Grand Étang de Saint-Estèphe
The Doue, about a kilometer from its confluence with the Bandiat

The Doue, about a kilometer from its confluence with the Bandiat

The Doue is a small river in France that runs in the Dordogne department in the Nouvelle-Aquitaine region . It rises in the municipality of Piégut-Pluviers , in the Périgord-Limousin Regional Nature Park, and after 18 kilometers flows into the Bandiat as a right tributary in the municipality of Javerlhac-et-la-Chapelle-Saint-Robert . Their average gradient is 9.14 m / km.

Flow through communities

course

The river has its source at a height of 280 meters near the hamlet of La Noche in the municipality of Piégut-Pluviers. Its initial direction of flow is to the southwest, forming the border between the communes of Piégut-Pluviers and Augignac and then between Saint-Estèphe and Augignac. After 5 kilometers, it is dammed near Saint-Estèphe to form the 30-hectare Grand-Étang , a popular swimming lake with a campsite. Immediately down the valley, it crosses the sea of ​​rocks of the Chapelet du Diable with the Roc Branlant . It then changes course at Le Briodet and flows west. At Pinard (municipality of Le Bourdeix) it takes up the Ruisseau des Forges as a right tributary and changes its direction of flow again to the southwest. Before it flows into the Bandiat, it comes towards the left branch of the Combas at the mill Le Moulin de chez Jouannaud . The confluence with the Bandiat is about 1 km southeast of Javerlhac at an altitude of 120 meters.

geology

The Doue drains most of the Piégut-Pluviers-Granodiorit . Only when it reaches the municipal area of ​​Javerlhac-et-la-Chapelle-Saint-Robert at the Le Moulin Vieux mill (about 2 kilometers from the mouth) does it flow through the shallow sediments of the Aquitaine basin , consisting of lias ( Pliensbachium and Toarcium ) and limestone des Doggers ( Bathonium , partly also recrystallized here). It flows into the Pleistocene alluvium of the Bandiat valley.

Individual evidence

  1. ↑ a b geoportail.gouv.fr (1: 16,000)
  2. ↑ a b The information on the length of the river is based on the information about the Doue at SANDRE (French), accessed on December 22, 2010, rounded to full kilometers.