Roizonne
| Roizonne | ||
2.jpeg) Roizonne Viaduct |
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| Data | ||
| Water code | FR : W2330520 | |
| location | France , Auvergne-Rhône-Alpes region | |
| River system | Rhône | |
| Drain over | Bonne → Drac → Isère → Rhône → Mediterranean | |
| source | in the municipality of Lavaldens 44 ° 59 '29 " N , 5 ° 56' 47" O |
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| Source height | approx. 2009 m | |
| muzzle | on the municipal boundary of Nantes-en-Ratier and Siévoz in the Bonne coordinates: 44 ° 54 ′ 11 " N , 5 ° 49 ′ 14" E, 44 ° 54 ′ 11 " N , 5 ° 49 ′ 14" E |
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| Mouth height | approx. 581 m | |
| Height difference | approx. 1428 m | |
| Bottom slope | approx. 65 ‰ | |
| length | approx. 22 km | |
The Roizonne is a mountain river in France that runs in the Isère department in the Auvergne-Rhône-Alpes region . It rises under the name Ruisseau de Vaunoire in the municipality of Lavaldens . Its source is on the northeast flank of the Grand Armet summit (2792 m). It drains through a high valley in the Taillefer massif in an S-curve generally in a south-westerly direction and flows into the Bonne as a right tributary after around 22 kilometers at the municipal boundary of Nantes-en-Ratier and Siévoz .
Places on the river
- Maison Rourvis , Lavaldens municipality
- Moulin Vieux , Lavadens municipality
- Lavaldens
- La Valette
- Oris-en-Rattier
- Le Bas Roizon , municipality of Nantes-en-Ratier
Attractions
- Roizonne Viaduct: 260 m long arched bridge over the river, built 1913–1928 as a railway bridge for the Chemin de fer de La Mure railway line , now in use as a road bridge for the D26 departmental road.
Web links
Commons : Viaduc de la Roizonne - collection of images, videos and audio files
