Vernaisson

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Vernaisson
Vernaison
The narrow gorge of the Grands Goulets

The narrow gorge of the Grands Goulets

Data
Water code FR :  W3330500
location France , Auvergne-Rhône-Alpes region
River system Rhône
Drain over Bourne  → Isère  → Rhône  → Mediterranean
source in the municipality of Saint-Agnan-en-Vercors,
44 ° 51 ′ 9 ″  N , 5 ° 24 ′ 28 ″  E
Source height approx.  1074  m
muzzle on the municipal boundary of Saint-Eulalie-en-Royans and Pont-en-Royans in the Bourne coordinates: 45 ° 3 ′ 44 ″  N , 5 ° 20 ′ 25 ″  E, 45 ° 3 ′ 44 ″  N , 5 ° 20 ′ 25 ″  O
Mouth height approx.  198  m
Height difference approx. 876 m
Bottom slope approx. 27 ‰
length 32 km

The Vernaisson (also written: Vernaison ) is a river in France that runs in the Auvergne-Rhône-Alpes region . It rises in the Vercors Regional Nature Park in the municipality of Saint-Agnan-en-Vercors , first drains in a northerly direction, then turns to the northwest after about 15 kilometers, breaks into the valley of Échevis in the narrow gorge Grands Goulets , leaves it in an equally spectacular manner in several cascades and flows after a total of 32 kilometers at the municipal boundary of Saint-Eulalie-en-Royans and Pont-en-Royans as a left tributary into the Bourne . On its way, the Vernaisson crosses the Drôme department and in its mouth section forms the border with the Isère department .

Places on the river

(Order in flow direction)

Attractions

  • Grands Goulets , gorges below Les Baraques en Vercors
  • Cascade Verte , Cascade Blanche , waterfalls at the Petits Goulets , above Sainte-Eulalie-en-Royans

Individual evidence

  1. ↑ Source geoportail.gouv.fr
  2. ↑ estuary geoportail.gouv.fr
  3. ↑ Water information system Service d'Administration National des Données et Référentiels sur l'Eau (French) ( information ), accessed on 6 September 2014, rounded to full kilometers