Park at the junction with the dirt track (limited spaces). There is a car park further on at Pré Bouria.
(S/E) Walk up to the hamlet of Moissière.
(1) Turn left towards the houses, then left again. Before the fountain on the right, take a dirt track, then leave it to take the small path that follows the stream up through the forest. You’ll reach a fork.
(2) Turn right onto a path that climbs steeply before reaching a flat section.
Climb this path, which becomes very steep. Continue along a lovely flat section with a beautiful view before continuing the climb towards the pass (altitude 2194m). This final section may be tricky for those prone to vertigo.
(3) Magnificent view over the Durance Valley, Lake Serre-Ponçon and its sailing boats. Just a little more effort: head right to reach the summit of L’Arche. The path is poorly marked but runs along the edge of the ridge.
(4) A sublime view: the Ancelle Plateau, the Drac Valley unfolding before us, Gap and its surroundings, the Burre Plateau. All that remains is to head back down the same way to the car park (S/E).

and we could have ended up with a higher cumulative elevation gain