From Aosta, head to Sant-Oyen and follow a small road running alongside the Torrente Artanavaz. After a caravan site, you reach a car park at a small cross-country ski resort. This is the starting point.
(S/E) From the cross-country ski centre car park, head due south.
(1) Following the stream as closely as possible seems the most pleasant option. The path is never far away. Streams and larch trees go hand in hand.
(2) Pass by Tza de Flassin. From there, the ridges follow one after another heading east, then north-east.
(3) You reach the pass below Mont Flassin. Follow the ascent track as closely as possible for the descent.
(S/E) Arrival.