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Climb: From the hamlet of Frasse, climb the snow slopes by following the route of the summer trail, along a spur until the following hamlet, the Maisonnettes, from where you can also leave in the event of insufficient snow cover. Follow the trail going towards the left, which crosses the agricultural track several times, until the Reposoir chalets.
Go up the inclined slope above, that generally is traversed from left to right until reaching the place called Chatelard (1412m, very pretty typical chalets). Continue the right slopes to the upper part, via the high mountain pasture of the Crozat where a track is traversed, then slightly towards the left until a second track. Go up on the right of the chalet towards a flat area (peat bog), located below Lac du Clou (1680m). go up right in the forest, on the summer trail. At the altitude of 1750m, go diagonally towards the left (South), and go up in the forest clearings, in front of the lake at 1805m until the flat rock plateau. Traverse it in a southwest direction. You can then easily reach the summit directly by the eastern slope, until reaching a shoulder. It is then often necessary to take off your skis for the last fifty meters. It takes 2 to 3h.
Descent: follow the southwest ridge in the direction of Roche Plane pass. You can then choose its slope between the summit and the pass, depending on the snow conditions. (from S4 under the summit to S2 near Roche Plane pass). It is then possible to return to the side towards the northeast, to Roche Plane plateau to reach the ascent route. A third possibility involves descending until the lake 1797m, then to go up the bump 1918m completely to the south, descend completely to the east, then follow the forest clearing to an altitude of 1700m, until Plan Villard (1546m). Continue northeast until the Blottières chalet (1430m), then through the forest via the summer trail until Châtelard (another Châtelard). Descend the large slope along the edge on the left to arrive at the road above the holiday centre (Carroz Dessous), that you follow towards the north to reach the vehicles at Frasse (300m).
Descent variant: It is possible to descend by the same route, it takes 1h.