Road · France
Col d'Ornon from Le Bourg-d'Oisans
A mountainous 14 km road cycling route from Le Bourg-d'Oisans through Le Rat, Fond des Roches and Ornon, with 652 m of climbing over the Le Rat climb.
At a glance
- Best for
- Short, climbing-heavy rides
- Distance
- 13.5 km
- Elevation gain
- 652 m
- Riding time
- 58 min
- Difficulty
- Easy
- Bike
- Road bike
- Surface
- Paved
- Best months
- Jul to Sep
- Navigation
- GPX download
- Start → finish
- Le Bourg-d'Oisans
Map and elevation profile
Elevation profile
- 652 m
- 14 km
Route description
- Le Bourg-d'Oisans
- Le Rat climb
- Le Rat
- Fond des Roches
- La Paute
- Le Villaret
- La Poyat
- Ornon
- Le Rivier
Starting in Le Bourg-d'Oisans, the route passes Le Rat at 1.7 km, Fond des Roches at 2.2 km and Petit Vernay at 2.6 km. The main climb begins shortly after 1.5 km and stretches for 12 km ascending 652 m at an average gradient of 5.4%, with sections up to 11.8%. The climb reaches its highest point at 1369 m after 13.5 km.
The entire route is paved and mostly on main roads, with 12 km ridden without a cycle lane, including 11 km on roads with posted speed limits of 80 km/h or higher. The longest named road used is the D 526 for 11.3 km. There is a short 1.2 km section with a cycle lane. Facilities along the route include shops, water points, bike shops and toilets near the start with a 5 km stretch without a café or shop from 1.6 to 6.6 km. At the finish near the summit is the Le Chantelouve restaurant.
There are bakery and convenience shops near the start and drinking water is available multiple times along the climb. Worth a stop are the ruins of Anciennes ardoisières at 8.1 km and a picnic site at Col d'Ornon near the end. Toilets and a bike shop are available near the start and toilets again near the climb summit.
Why ride this route?
- The shortest of the 4 rides from Le Bourg-d'Oisans, yet it climbs 652 m.
- Climbs the Le Rat climb (12 km at 5.5 %).
- Tops out at 1,369 m, 13.5 km in.
Highlights
- Climb averaging 5.4% over 12 km
- Col d'Ornon picnic site at 13.5 km
- Anciennes ardoisières ruins at 8.1 km
- Le Chantelouve restaurant at the finish
Along the route
Places passed
On the road
Climbs
| Climb | Starts at | On this ride | Full ascent | Top on this ride |
|---|---|---|---|---|
| Le Rat climb | 1.5 km | 12 km · 652 m · 5.4 % · max 11.8 % | 12 km · 652 m · 5.5 % | 1369 m |
Le Rat climb · full ascent, starts at 1.5 km
< 4%4 – 7%7 – 10%> 10%
Know before you go
- 5 km without café or shop between 1.6 and 6.6 km
- 12 km on main roads without cycle lane
- 11 km on roads with 80 km/h speed limits
