We visited the are of Briançon in August of 2012 and we climbed some peaks always returning to Briançon, our "base camp" where we stayed in a camping:
Day 1: Mont Chaberton (3.171m), from Montgenèvre.
Day 2: Rocciamelone (3.538m), from Susa-Refugio de la Riposa.
Day 3: Gran Aréa (2.869m), from the road of Col du Granon.
Day 4: Refuge d'Écrins (3.175m), from Pré de Madame Carle.
Day 5: Dôme de Neige des Écrins (4.015) and descent.
It was an amazing holiday in the Alps.