Analysing terrain data
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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 extremely exposed where falling will almost certainly result in serious injury or death.
If, upon reaching Lac de Combal (on the way down from the Col de la Seigne), you still feel keen and energetic, there is a way of walking to Courmayeur, thereby avoiding needing the bus.
Just before reaching the small bridge at the eastern end of Lac de Combal, turn off right on a good path, heading for the Arp Vielle and the Col Chécroui.
The path climbs steeply for 400 vertical metres and then makes a long, undulating traverse to the Col Chécroui (1956 metres).
From here, follow jeep tracks that wind, for 1.5 hours, down to Courmayeur.