Head to the village of Étroubles, between Aosta and the Great St Bernard Pass. There is a large car park near a mini-market and the Tunnel Campsite in particular.
(S) To start, take the small road that runs past the campsite, following the signs and TMF markings. The road then turns into a forest track leading into the woods.
(1) At the junction, carry straight on along the forest track, which climbs gently.
(2) Take the path on the right, which climbs more steeply through the forest. There are numerous fallen trees in this section, but the path is generally well-cleared and well-marked. You’ll come to a forest track.
(3) Follow this track to the left along a flatter section, winding through a series of wide bends.
(4) Take the path that branches off to the right in a hairpin bend and climb more steeply again. Emerge from the forest: the view begins to open up.
(5) Continue along the track climbing to the left to go all the way round the ridge and, keeping straight ahead, you’ll soon reach the Chaligne refuge (E).