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Routes
Hiking trails & Routes
France
Ile-de-France
Palaiseau
Gometz-Le-Châtel

Montjay Tunnel – The Tunnel loop from Gometz-le-Châtel

Routes
Hiking trails & Routes
France
Ile-de-France
Palaiseau
Gometz-Le-Châtel

Montjay Tunnel – The Tunnel loop from Gometz-le-Châtel

Moderate

4.0

(1)

118

hikers

Montjay Tunnel – The Tunnel loop from Gometz-le-Châtel

03:43

13.1km

280m

Hiking

Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: March 27, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Parc naturel régional de la Haute Vallée de Chevreuse

Waypoints

A

Start point

Bus stop

Get Directions

1

1.18 km

Sacré portail

Highlight • Other

a magnificent portal to discover during your hike through Gometz-le-Châtel charming village

Translated by Google •

Tip by

2

2.37 km

Vue panoramique sur viaduc

Highlight • Other

3

2.54 km

En haut de Montjay

Highlight • Other

4

2.90 km

Montjay Tunnel

Highlight • Trail

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

5

2.97 km

The Tunnel

Highlight • Structure

long tunnel be careful arriving in the middle it is pitch black not easy to walk but no trap in the middle of this tunnel in the distance the exit is lit

Translated by Google •

Tip by

6

3.10 km

Underpass

Highlight • Bridge

place which allows you to arrive under the long tunnel by passing here either under the bridge or above the bridge

Translated by Google •

Tip by

7

3.33 km

Tunnel before the viaduct

Highlight • Other

8

6.60 km

Laricio pine

Highlight • Forest

B

13.1 km

End point

Bus stop

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Way Types & Surfaces

Way Types

6.10 km

4.35 km

1.87 km

536 m

277 m

Surfaces

3.70 km

3.62 km

2.86 km

1.79 km

908 m

152 m

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Elevation

Elevation

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

Highest point (160 m)

Lowest point (80 m)

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Weather

Powered by Foreca

Monday 25 May

32°C

16°C

0 %

Additional weather tips

Max wind speed: 8.0 km/h

to get more detailed weather forecasts along your route

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

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Nearby routes

Moderate

4.7

306

Jean Racine côté Château de la Madeleine — Parc Naturel Régional de la Haute Vallée de Chevreuse

02:54h

10.1km

240m

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