Yerre
| Yerre | ||
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| Data | ||
| Water code | FR : M1114000 | |
| location | France , Center-Val de Loire region | |
| River system | Loire | |
| Drain over | Loir → Sarthe → Maine → Loire → Atlantic Ocean | |
| source | in the municipality of Chapelle-Guillaume, 48 ° 7 ′ 56 ″ N , 0 ° 52 ′ 0 ″ E |
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| Source height | approx. 225 m | |
| muzzle | below Saint-Hilaire-sur-Yerre in the Loir Coordinates: 48 ° 1 '12 " N , 1 ° 15' 32" E 48 ° 1 '12 " N , 1 ° 15' 32" E |
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| Mouth height | approx. 97 m | |
| Height difference | approx. 128 m | |
| Bottom slope | approx. 2.6 ‰ | |
| length | approx. 49 km | |
The Yerre is a river in France that runs in the Eure-et-Loir department in the Center-Val de Loire region . It rises in the Perche Regional Nature Park in the municipality of Chapelle-Guillaume , initially drains in an easterly direction and later in a south-easterly direction and flows into the Loir after around 49 kilometers below Saint-Hilaire-sur-Yerre as a right tributary .