RoutesPlannerFeaturesUpdates
App
Login or Signup
Get the App
Login or Signup
Routes
Mountain biking trails
France
Ile-de-France
Étampes
Boissy-Le-Sec

Saint-Yon Church – Porte des Bourdeaux... loop from Boissy-le-Sec

Routes
Mountain biking trails
France
Ile-de-France
Étampes
Boissy-Le-Sec

Saint-Yon Church – Porte des Bourdeaux... loop from Boissy-le-Sec

Moderate

5.0

(1)

2

riders

Saint-Yon Church – Porte des Bourdeaux... loop from Boissy-le-Sec

03:18

39.8km

530m

Mountain biking

Moderate mountain bike ride. Good fitness required. Advanced riding skills necessary. The starting point of the route is accessible with public transport.

Last updated: August 5, 2026

Tips

Includes a very steep uphill segment

You may need to push your bike.

After 5.66 km for 261 m

Waypoints

A

Start point

Bus stop

Get Directions
1

5.15 km

Saint-Aubin Church

Highlight • Other

Very beautiful church on the banks of the Renarde, near an old washhouse.

Translated by Google •

Tip by

2

11.1 km

Madagascar quarry

Highlight • Other

Gates closed. Access impossible.

Translated by Google •

Tip by

3

12.0 km

Nice descent

Highlight (Segment) • Other

4

16.4 km

King of the hard end

Highlight • Other

It is at the end of a climbing and winding road that we discover the small church of Saint-Yon, and its adjoining cemetery. Here rests, under an ancient mausoleum, Maurice …

Translated by Google •

Tip by

5

16.5 km

Saint-Yon Church

Highlight • Religious Site

Very beautiful chapel, but there is a small dimension.

Translated by Google •

Tip by

6

16.5 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 •

Tip by

7

24.9 km

Baville Castle

Highlight • Castle

17th century castle with a large park. Difficult to access, via a somewhat muddy paved road

Translated by Google •

Tip by

8

31.0 km

Small Steep Path

Highlight (Segment) • Trail

Departure 107 m, arrival 160 m over a length of 630 m.

Translated by Google •

Tip by

B

39.8 km

End point

Bus stop

Loading

Way Types & Surfaces

Way Types

22.8 km

6.90 km

6.57 km

1.93 km

832 m

806 m

Surfaces

15.8 km

8.86 km

6.34 km

4.54 km

3.42 km

837 m

Sign up to see more specific route details

Sign up for free

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 (50 m)

Sign up to see more specific route details

Sign up for free

Weather

Powered by Foreca

Saturday 17 October

14°C

5°C

4 %

Additional weather tips

Max wind speed: 12.0 km/h

to get more detailed weather forecasts along your route

Comments

guide_signup

Want to know more?

Sign up for a free komoot account to join the conversation.

Sign up for free

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

Save
Edit route
Download GPX
Move start point
Print
Share
Embed on a website
Report an Issue
Report restricted access

Nearby routes

Moderate

4.6

360

View of the Ballancourt Quarry – Singletrack Through Ferns loop from Ballancourt

04:30h

51.8km

660m

Explore
RoutesRoute plannerFeaturesRedeem a voucherHikesMTB TrailsRoad cycling routesBikepackingSitemap
Download the app
Follow Us on Socials

© komoot GmbH

Privacy Policy