Travel time: 5h 30’
Difference or level: 884 m
Note: The path can be divided into two stages, by stopping to sleep in the refuge of Del Viso. From the Vallanta refuge you cut briefly to the north - west, in order to land on the marked trail that climbs on the right side of the hydrographic basin of the Bealera Founsa. The trail climbs diagonally beneath a rocky bar, leaving the lower right corner the old hut Gagliardone. Once in a small suspended basin, you will come to a fork. You will skip the left branch to the Passo della Losetta and continue to rise with a series of switchbacks up to the upper basin where you will be able to find the lakes of Vallanta (2.710m). You have to pass to the west side of the two bodies of water, then climb with switchbacks between grass and other debris. With a stretch diagonally across the rocks, you will reach the Vallanta Pass (Col de Valante, 2.811m), it is a clear depression of the main watershed, on the French-Italian border, between Mount Losetta (or Pointe-Joanne) and Punta Gastaldi. The view on the Italian side is dominated by the north - western face of the Monviso. On the French side, the view extends over the upper valley of the Guil, where stands the refuge Del Viso. From the pass that descends on the French side, you will have to follow the trail among the rocks, to the beautiful valley of the Lac Lestio, from which originates the river Guil.
Continuing down a path to the left side of the river, you come to a grassy plain at an altitude of about 2,450. Here you cross the river, and soon after, you find yourself at a crossroads. Leaving the path down to the left along the valley towards the Belvedere du Face, turn right, first down and then up the hillside among the pastures.
After all that, a gentle climb takes you to the refuge of Del Viso (2.640m). From the hut, take the path to the north, which, proceeding almost flat between meadows strewn with boulders, goes to cross the torrent of the band at an altitude of 2,437. Once you have neglected the left side of the branch that descends in the direction of Belvedere du Viso, you will proceed on the lawn for a hundred little meters to another crossroads.
Leave the trail to the hill Seilliere and climb to the right side along the stream. Arrived just under a pond, turn left to go to a waterlogged plan at an altitude of 2,569. The trail continues to the right with a series of collapsed switchbacks, then folds again to the left, towards the watershed between Guil and Pellice).
Along the trail, ruined by erosion and marked by cairns, you come under the rocky crest of the border. You have to leave towards the branch to the left not far from the Step Seillierino, and proceed eastward at the foot of the rocks, first uphill and then slightly downhill to the entrance of the French Buco di Viso (Pertuis du Viso), dug between 1475 and 1480 by the Marquis Ludovico II of Saluzzo. It was created in order to allow the caravans transporting salt and merchandise from Dauphin to the Marquis, to use an alternative method to the dangerous Pass of the Traversette. If you have a stack you can switch to the narrow tunnel, but the entrance from the side of the Alps has often been made difficult by the encumbrance of debris. Alternatively, you can leave to the left the Buco di Viso to continue on the path, with several bends between the rocks, going up to the Pass Traversette (Col de la Traversette 2.950m), a glue debris that opens on the main watershed of the chain Alps, between the rocks Fourioun and the Punta Traversette. It has been a famous crossing path and passing trail since the ancient times: according to the Roman historian Livy, Hannibal would have used the Traversette pass to cross the Alps on October 26, 268 BC, with its twenty-six thousand men and thirty-seven elephants. The Carthaginian leader would have opened a gap between the rocks with a very original technique, which involved heating the rock with fire and its immediate cooling with water and vinegar. This is the same technology applied more than 1700 years later by the makers of the Buco di Viso. Regarding the name, for many authors, it would be more correct to say "Hills of Traversetta" because the pass is unique.
In French we use the term "Col de la Traversette" in a singular sense. The name Traversetta means "narrow passage between the two sides."
From the hill begins the descent into the Valley of Traversette to the Pian del Re.
The trail drops with a series of switchbacks to a steep scree slope (this stretch becomes dangerous when it's still snowy, necessitating the use of ice ax and crampons). Once you leave to the left the Italian entrance of the Buco di Viso (2.882m), continue on the marked trail that descends in the scree. You have to leave again on the left a branch to the Step Luisás and you will get to some half-destroyed barracks. The trail continues to fall with a series of switchbacks, passing near the source Ordi and then going through the debris Pian Mait (or Mait Di Viso, about 2,700 m), dominated by the East wall of the Rocks Fourioun. Mait is a Provençal word meaning "cupboard", and in fact the appearance of the debris basin, enclosed by high rocks, refers in part to that of the old kitchen cabinet. Come on a plain where there are the ruins of a barrack, the trail starts to go down to the right with various activities among the boulders and the rocks.
At an altitude of about 2,600, a branch is left to the right for the refuge Giacoletti, better known as the Path of Postino, and you have to continue on the trail that cuts the steep slope below the South buttress of Mount Meidassa. You will arrive to the Pian Dar Moine, where, at an altitude of about 2,640, you come to a fork. Ignore the branch that goes up to the Hill Dar Moine, but instead you have to follow the old military cart that drops you right into the meadows. You continue the descent to a moraine of
large boulders, then fold it to the right and cross the river flowing at the bottom of the valley. At about 2,275 m you leave the right path for the Coulour del Porco and the Refuge Giacoletti, and then continue along the bumpy dirt track that descends into a valley, dotted with boulders. Once in a bottleneck at about 2.115m, ignore the path that branches off to the right and leads to the Lago Superiore. Going down to the stony dirt track on the left side basin of the valley, you will reach the Pian del Re.