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Montjay Tunnel – Fauvettes Viaduct loop from La Ville-du-Bois

Routes

Bike touring routes & trails

Montjay Tunnel – Fauvettes Viaduct loop from La Ville-du-Bois

Moderate

4.0

(2)

riders

Montjay Tunnel – Fauvettes Viaduct loop from La Ville-du-Bois

02:32

34.8km

330m

Cycling

Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: June 26, 2026

Tips

Includes a segment in which cycling is not permitted

After 30.2 km for 52 m

Waypoints

Start point

Bus stop

Get Directions

1.98 km

Bois de la Turaude

Forest

3.99 km

Le Ruisseau Blanc Equestrian Center

Highlight • Structure

6.79 km

Bois Courtin

Forest

13.9 km

The trail entrance to se the tunnel in here on the right

Highlight • Other

Be careful not to continue straight uphill and miss the trailhead. On this trail, you go right into it and then turn left on a wide path, a few meters away you can already see the tunnel.

Tip by

16.1 km

Like the nearby Fauvettes viaduct, the Montjay tunnel once served as the old Paris-Chartres railway line. In the middle of the communal forest of Bures-sur-Yvette, it punctuates the straight and rolling line leading to the viaduct.

Translated by Google •

Tip by

17.0 km

Fauvettes Viaduct

Highlight • Bridge

Magnificent viewpoint over the valley surrounded by greenery, accessible by "gravel" paths (roots and stones) through the wood or by "hiking / mountain biking" trails in the valley (it will …

Translated by Google •

Tip by

18.8 km

Mare de Gometz-le-Châtel

Highlight • Trail

It's hard to believe that you are so close to Paris when you pass through the pretty village of Gometz-le-Châtel. The town stands out in particular for its small ponds …

Translated by Google •

Tip by

21.3 km

The Oak of Petit Launay

Highlight • Natural Monument

The “Petit Launay” oak (the aulnoye), remarkable for its size and the distribution of its branches, seems to date back to the 15th century.
The organizers of the Universal Exhibition …

Translated by Google •

Tip by

34.8 km

End point

Bus stop

Way Types & Surfaces

Way Types

10.5 km

8.50 km

6.79 km

4.71 km

4.17 km

148 m

Surfaces

16.4 km

10.0 km

4.24 km

4.02 km

103 m

< 100 m

Elevation

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

Highest point (160 m)

Lowest point (90 m)

Weather

Tuesday 7 July

34°C

16°C

0 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

Comments

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Montjay Tunnel – Fauvettes Viaduct loop from La Ville-du-Bois

Le Ruisseau Blanc Equestrian Center

Parc Nord - Les Ulis

The trail entrance to se the tunnel in here on the right

Montjay Tunnel

Fauvettes Viaduct

Mare de Gometz-le-Châtel

The Oak of Petit Launay

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