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Park in the car park near the station.
(S/E) Set off along the street running perpendicular to the railway line, Rue du Docteur Thelmier. At the end of the street, turn right onto Rue Macaigne Fortier.
(1) Turn left into Rue Veuve Quatremain, passing the old wash house. At the end of the street, with the media library on your left, continue straight on along Chemin de Vaugoulé until you reach the yellow-marked PR® trail, known as Chemin de la Justice, and follow it to the left.
(2) Don’t miss the view of Cormeilles-en-Vexin Aerodrome. Follow the aerodrome fence; at the gate to the west of the aerodrome, continue along the path on the left. Go straight on for 1 km, ignore a path branching off to the left and reach the next one.
(3) Turn left between the fields, following the yellow PR® markings, and continue straight on.
(4) Leave the PR® path, which turns right, and continue straight ahead until you reach Montgeroult Town Hall, where there is a children’s playground and a rest area.
(5) Head back in the opposite direction to the start and take the uphill street on your right, Rue de la Croix Verdeau, to reach the grain-growing plateau. At the top of the hill, continue straight on until you reach Chemin de Chante Coq.
(6) Enjoy the view of the water tower and the silos at Osny, then continue straight on until you reach Rue Henri Guyetand and carry on until you come out onto Rue Macaigne Fortier. Follow this street to the left for about a hundred metres.
(7) Turn right onto Ruelle de la Gare, walk past Boissy-l'Aillerie station and head towards the car park (S/E).
Visorando member
Moderate 
Difficult 
