Smagne
| Smagne | ||
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| Data | ||
| Water code | FR : N32-0300 | |
| location | France , Pays de la Loire region | |
| River system | Lay | |
| Drain over | Lay → Atlantic Ocean | |
| source | near Bourseguin , in the municipality of Bourneau 46 ° 33 ′ 13 ″ N , 0 ° 49 ′ 40 ″ W |
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| Source height | approx. 110 m | |
| muzzle | at Mareuil-sur-Lay-Dissais in the Lay coordinates: 46 ° 32 ′ 13 ″ N , 1 ° 12 ′ 15 ″ W 46 ° 32 ′ 13 ″ N , 1 ° 12 ′ 15 ″ W |
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| Mouth height | approx. 10 m | |
| Height difference | approx. 100 m | |
| Bottom slope | approx. 2 ‰ | |
| length | 50 km | |
The Smagne is a river in France that runs in the Vendée department in the Pays de la Loire region . It rises near Bourseguin , in the municipal area of Bourneau , generally drains west and flows into the Lay after 50 kilometers at Mareuil-sur-Lay-Dissais as a left tributary .