Prenoud - Col Flassin

Take the private route (7) for the Flassin valley near the Saint-Oyen campsite, and follow it up to the pasture of Tsa de Flassin (2258 m).
From the houses, continue to the left, following the cattle trail, which becomes a path higher up. Ignore route 7B, which you meet on the right as you go up, then continue on the meadows and, move leftwards diagonally over the debris as far as the hill.