From the Porze Hutte the 403 trail markers guide south to the Dignas Fork notch where you re-enter Italian territory. Immediately to the left the trail climbs directly up the western slopes of the Croda Nera reaching the vicinity of the summit at 2431m. The trail proceeds eastward keeping close to the main displuvial continuing toward the Cadin col, Colle di S. Rocco, M. Cecido, Cima Salvades and passing below Cima Manzon and Cime Mezzana. A long ascending traverse in view of Mt. Vancomun precedes the arrival at Forcella Carnia, where route 403 should be abandoned to descend to the right down the small valley crossed by CAI path 128 (this section the trail markers are scarcely present, the directive is given indicatively by the course of the stream that should be indulged until almost the flat part near the malghe road, GPS useful).
Upon reaching the malghe road, continue to the left at length, in the direction of the silhouette of M. Peralba, still quite far away. At Casera Chiastelin you keep left, passing just above the building, following the signs for the malghe road to Malga Antola. With a long traverse, first uphill and then slightly downhill, you reach Malga Antola from which you continue on the service road to Malga Chivion. Keeping to the same directive, climb for a short distance to a wide clearing where, following the downhill dirt road to the right, you gain the course of the Cordevole stream, which must be crossed (easy ford).
A little further on a barely visible path on the left cuts up the slope for a short distance and joins the dirt road that goes up to the sources of the Piave (go up to the left). Upon reaching the Sorgenti del Piave refuge, on the left of the monument, a path climbs eastward below the walls of the Peralba group, shortly joining the service road to the Calvi refuge. Keeping to the wide path, still uphill, you reach the refuge - stage post.
