Avon (Yerres)
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Avon Ru d'Avon  | 
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 The river at Guignes  | 
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| Data | ||
| Water code | FR : F4800600 | |
| location | France , Île-de-France region | |
| River system | His | |
| Drain over | Yerres → Seine → English Channel | |
| source | in the municipality of Quiers  48 ° 36 ′ 54 ″ N , 2 ° 59 ′ 14 ″ E  | 
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| Source height | approx. 122 m | |
| muzzle | in the municipality of Ozouer-le-Voulgis in the Yerres coordinates: 48 ° 39 ′ 8 ″  N , 2 ° 46 ′ 27 ″  E 48 ° 39 ′ 8 ″  N , 2 ° 46 ′ 27 ″  E | 
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| Mouth height | approx. 66 m | |
| Height difference | approx. 56 m | |
| Bottom slope | approx. 2.7 ‰ | |
| length | approx. 21 km | |
The Avon is a river in France that runs in the Seine-et-Marne department in the Île-de-France region . It rises in the municipality of Quiers , generally drains towards west-northwest and after around 21 kilometers flows into the Yerres as a left tributary in the municipality of Ozouer-le-Voulgis .
Places on the river
(Order in flow direction)
- Quiers
 - Mormant
 - Pecqueux , municipality of Aubepierre-Ozouer-le-Repos
 - Guignes
 - Nogent sur Avon , municipality of Yèbles