Pont de l'Alpe to Refuge du Chardonnet via Col du Chardonnet

From Pont de l'Alpe (1,710 m), take the track to the chalets de l'Alpe du Lauzet. Leave the track and pick up the GR57 to an altitude of 2,209 m (on the map), then start the steep climb to Col du Chardonnet (3 hrs).
From the pass, the descent to the refuge is well signposted (1 hr).