Description
This hike takes in the emblematic Terre Rouge lakes and the Combe Grosse lake, before arriving at the Pas du Loup. It marks the boundary between the upper Chastillon valley and the Rio Freddo valley.
From the Chalet Marano hotel parking lot (2,070m - b.90a). Turn left onto the Terre Rouge lakes trail. Follow this trail up the adret of the resort to marker 91, where it branches off to the right (east).
Cross a scree (cairns), then ford the Terre Rouge valley to reach marker 92 (2360m).
Turn left to quickly reach the first lake. Continue along another small lake. At marker 93 (2425m), take the left-hand path up the Pas du Loup valley (good view of all the Terre Rouge lakes).
After reaching the Combe Grosse lake (2,532m), negotiate the final slopes leading to the Pas du Loup (2,665m), where the boundary marker is located.
Return by the same route.


