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Butry-sur-Oise is a commune in the Val-d'Oise department in Île-de-France in northern France.

Mériel is a commune in the Val-d'Oise department and Île-de-France region of France.

Mériel is a rail station located in the commune of Mériel (Val-d'Oise department), France. The station is served by Transilien H trains from Paris to Persan-Beaumont via Saint-Leu-la-Forêt. The daily number of passengers was less than 500 in 2002. Mériel is located on the line from Ermont-Eaubonne to Valmondois, that was opened in 1876.