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Montgeroult Castle – View of the Paris skyline loop from Boissy-l'Aillerie

Montgeroult Castle – View of the Paris skyline loop from Boissy-l'Aillerie

Moderate

riders

Montgeroult Castle – View of the Paris skyline loop from Boissy-l'Aillerie

02:05

45.2km

450m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: May 29, 2026

Tips

Your route passes through a protected area

Please check local regulations for:

Parc naturel régional du Vexin Français

Waypoints

Start point

Train Station

Get Directions

2.24 km

Montgeroult Castle

Highlight • Castle

Private castle dating from the 17th century and classified as a Historic Monument since 1996.

Translated by Google •

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2.98 km

Mill and communal washhouse in Courcelles-sur-Viosne

Highlight • River

A beautiful piece of nature, the building opposite the wash house has a magnificent architecture.

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Tip by

16.3 km

Here, on a clear day, you can admire one of the most unique views of the Parisian skyline, even though it is 40 km away, with the silhouette of La Défense, the Eiffel Tower and the Montparnasse Tower.

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16.6 km

Saint-Crépin–Saint-Crépinien Church, Bréançon

Highlight • Religious Site

The Saint-Crépin-Saint-Crépinien church was built between the 12th and 13th centuries. This beautiful building perfectly illustrates the transition from Romanesque art to Gothic architecture. Take the opportunity to stop or take a refreshment break while you contemplate this historic monument.

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28.0 km

Saint-Georges Church of Le Heaulme

Highlight • Religious Site

When you come out of the forest near Le Heaulme, you will come across this little church dedicated to St. Georges

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38.5 km

Gare d'Us, a welcoming third place

Highlight • Other

Trains still stop in Us, but like many small towns, the station and its ticket office have been deserted and are no longer used. A great initiative has fortunately brought …

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45.2 km

End point

Train Station

Way Types & Surfaces

Way Types

40.2 km

2.91 km

1.67 km

242 m

122 m

< 100 m

Surfaces

42.9 km

2.19 km

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (170 m)

Lowest point (40 m)

Weather

Monday 13 July

34°C

19°C

2 %

Additional weather tips

Max wind speed: 15.0 km/h

to get more detailed weather forecasts along your route

Comments

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Montgeroult Castle – View of the Paris skyline loop from Boissy-l'Aillerie

Montgeroult Castle

Mill and communal washhouse in Courcelles-sur-Viosne

View of the Paris skyline

Saint-Crépin–Saint-Crépinien Church, Bréançon

Saint-Georges Church of Le Heaulme

Gare d'Us, a welcoming third place

Nearby routes

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