Routes Planner Features Updates

Login or Signup

Login or Signup

Login or Signup

Mountain biking trails

Mantes-La-Jolie

Porte de Bretagne – Pont de l'Arche loop from Longnes

Mountain biking trails

Mantes-La-Jolie

Porte de Bretagne – Pont de l'Arche loop from Longnes

Moderate

4.0

(1)

6

riders

Porte de Bretagne – Pont de l'Arche loop from Longnes

02:05

26.4km

270m

Mountain biking

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

Last updated: August 19, 2026

Waypoints

A

Start point

Bus stop

1

14.3 km

Stone bridge on the Chemin Billeux

Highlight • Bridge

15.3 km

Nymphée gallo-romain

Archaeological Site

3

20.5 km

Saint-Jacques-le-Majeur Church of Montchauvet

Highlight • Religious Site

Below, sporty mountain bike descent and arrival at a small river with a Roman stone bridge to cross

Translated by Google •

Tip by

4

20.6 km

Donjon and Fortified Site of Montchauvet

Highlight • Historical Site

One of the most beautiful villages of Île de France accessible by a small climb whatever your route of arrival. Several historical monuments to see: first of all the 12th …

Translated by Google •

Tip by

5

20.9 km

Porte de Bretagne

Highlight • Historical Site

Last of the three gates of the body of walls which surrounded the old stronghold. The grooves of the harrow are still visible.

Translated by Google •

Tip by

6

21.4 km

Pont de l'Arche

Highlight • Bridge

A pleasant surprise, this passage on this old stone bridge

Translated by Google •

Tip by

B

26.4 km

End point

Bus stop

Way Types & Surfaces

Way Types

16.9 km

4.81 km

3.53 km

530 m

522 m

130 m

Surfaces

14.8 km

4.74 km

4.16 km

1.79 km

742 m

166 m

Sign up to see more specific route details

Sign up for free

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

Tuesday 20 October

13°C

6°C

59 %

Additional weather tips

Max wind speed: 31.0 km/h

to get more detailed weather forecasts along your route

Comments

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.

Navigate Send to Phone

Move start point

Embed on a website

Report an Issue

Report restricted access

Nearby routes

3.8

132

Château de Plaisir – Single loop from Plaisir - Grignon

02:02h

25.3km

230m

3.8

134

Château de Plaisir – Bottom of the forest loop from Ergal

03:16h

43.3km

460m

4.3

67

Tourelles Castle – Le Vieux-Moulin loop from Bois-Jérôme-Saint-Ouen

02:54h

40.2km

240m

4.0

69

Saint-Quentin Pond – Bassin de Pissaloup loop from Villiers - Neauphle - Pontchartrain

02:48h

41.9km

280m

4.8

85

Geneste Pond – Geneste Pond loop from Plaisir - Grignon

03:06h

41.2km

270m

4.6

64

The ferry from Vétheuil to Lavacourt – View of Îlon Harbor loop from Vétheuil

02:42h

41.0km

180m

4.6

60

Vilpert Ponds – Château de Rambouillet loop from Montfort l'Amaury-Méré

02:54h

46.6km

360m

4.7

49

Old Limay Bridge – View of Îlon Harbor loop from Mantes Station

02:56h

44.3km

140m

4.6

50

Old Poissy Bridge – Médan loop from Vernouillet Verneuil

01:55h

30.6km

90m

4.4

64

Singletrack Through the Ferns – Sainte-Apolline Forest loop from Neauphle-le-Château

01:20h

19.1km

140m

4.3

27

Villette Castle – Hautil Forest loop from Tessancourt-sur-Aubette

04:37h

52.9km

860m

4.3

45

Single Fontaine Blanche – Val-d'Or Pond loop from Plaisir - Grignon

02:51h

41.5km

240m