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Saint-Yon Church – Porte des Bourdeaux... loop from Marolles-en-Hurepoix

Routes

Mountain biking trails

Saint-Yon Church – Porte des Bourdeaux... loop from Marolles-en-Hurepoix

Hard

4.0

(4)

riders

Saint-Yon Church – Porte des Bourdeaux... loop from Marolles-en-Hurepoix

04:26

53.3km

580m

Mountain biking

Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike. The starting point of the route is accessible with public transport.

Last updated: April 16, 2026

Tips

Includes very steep uphill segments

You may need to push your bike.

After 33.9 km for 180 m

After 44.3 km for 177 m

Waypoints

Start point

Train Station

Get Directions

15.5 km

Saint-Yon Church

Highlight • Religious Site

Very beautiful chapel, but there is a small dimension.

Translated by Google •

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15.6 km

Porte des Bourdeaux...

Highlight • Other

The place takes its name from Saint-Yon, a Christian martyr beheaded by Roman soldiers on this hill. The church and the Porte des Bourdeaux are the remains of a village …

Translated by Google •

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21.0 km

Presidential portal

Highlight • Other

Magnificent portal marking the entrance to the presidential estate

Translated by Google •

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21.1 km

Souzy-la-Briche Castle

Highlight • Castle

Very beautiful castle. From the outside.

Translated by Google •

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29.3 km

Rocailles bellifontaines

Highlight • Other

34.2 km

Barre Forest

Highlight • Other

The view from the top is remarkable. We can see Etampes, Morigny-Champigny, Etréchy… A signage table makes it possible to identify each city and visible heritage places.

Translated by Google •

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34.4 km

Former Grandchamp quarry

Highlight • Other

Remains of the old sandstone quarry

Translated by Google •

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44.6 km

Chamarande Viewpoint

Highlight • Other

Great hike, pretty easy overall. There are 3 small, old difficulties on the Orléans road, cobblestones in all directions and some brambles. The climb to the church of Saint Yon, …

Translated by Google •

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53.3 km

End point

Train Station

Way Types & Surfaces

Way Types

32.9 km

8.33 km

5.45 km

3.75 km

2.80 km

120 m

Surfaces

24.6 km

14.7 km

10.5 km

2.27 km

986 m

238 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 (60 m)

Weather

Wednesday 20 May

24°C

8°C

0 %

Additional weather tips

Max wind speed: 10.0 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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Saint-Yon Church – Porte des Bourdeaux... loop from Marolles-en-Hurepoix

Saint-Yon Church

Porte des Bourdeaux...

Presidential portal

Souzy-la-Briche Castle

Rocailles bellifontaines

Barre Forest

Former Grandchamp quarry

Chamarande Viewpoint

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