Analysing terrain data
The exposure grade describes the potential consequences of falling or slipping off the path.
Low Exposure: The path is on completely flat land and potential injury is limited to falling over.
Medium Exposure: The trail contains some obstacles such as outcroppings and rock which could cause injury.
High Exposure: Some trail sections have exposed ledges or steep ascents/descents where falling could cause serious injury.
Extreme Exposure: Some trail sections are extreme exposed where falling will almost certainly result in serious injury or death.
Start from the col du Sarrailé.Follow a track (you have the choice between steeper or steeper slopes with turns, they go to the same place).
At the road, go down and arrive at a junction turn left and go up a little towards a village, turn right and follow a path that descends.
Arrival at a track down turn right towards Biert.