Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride. The starting point of the route is right next to a parking lot.

Last updated: October 14, 2025

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Your route passes through a protected area

Please check local regulations for:

Parc naturel régional de la Haute Vallée de Chevreuse

Waypoints

Start point

Parking

Get Directions

9.33 km

Janvry Castle

Highlight • Other

The castle was built between 1600 and 1650 in a typically Louis XIII architectural style.

Translated by Google •

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20.4 km

Boullay-les-Troux Climb

Highlight • Climb

Nice climb in the shade, little traffic, medium tar if very thin tire (<25 mm)

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23.0 km

Mare Abreuvoir Herbouvilliers

Lake

23.5 km

Breteuil Castle

Highlight • Castle

Located in the heart of the Chevreuse Valley natural park, south of the Yvelines, 35 km from Paris and 20 km from Versailles, the magnificently furnished Château de Breteuil brings …

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28.5 km

Stone Shrine in Parc Naturel Régional de la Haute Vallée de Chevreuse

Highlight • Religious Site

37.0 km

Pump stroke

Highlight • Other

An old petrol pump like that is noticeable.

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37.1 km

Janvry Fountain

Highlight • Castle

Nice little village to see

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43.0 km

Escargot Climb – Marcoussis

Highlight (Segment) • Climb

Really nice as a climb with a nice orchard and a pleasant passage in the undergrowth

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46.2 km

End point

Parking

Way Types & Surfaces

Way Types

44.8 km

518 m

415 m

349 m

< 100 m

Surfaces

45.5 km

444 m

154 m

< 100 m

Elevation

Highest point (180 m)

Lowest point (80 m)

Weather

Today

Friday 28 November

10°C

8°C

100 %

If you start your activity now...

Max wind speed: 16.0 km/h

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Pump stroke

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