The Seine runs through it

Opton

78550 Houdan

Opton_Houdan
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A tributary of the Vesgre, it runs for 17km before joining it at Houdan. Its limestone waters are clear. Just as wild as the Vesgre, its small size limits its aquatic fauna. It is fished. Its course offers some short but beautiful walks.

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The Seine runs through it

78550 Houdan

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