Ascent

Park at the foot of the Chapelet chairlift, (1595m). Get to the top of the ski lift system, (La Chaux T-bar, 2267m  N45º58'32.5"  E007º08'41.3"), either by the farm roads or climbing more directly. From here, follow the undulating NW ridge, which steepens before arriving at a flattish area. Follow this leftwards to some rock outcrops at the foot of the final pyramid.
The summit is reached by the S flank of the ridge or on foot up its crest, (beware of a cornice.)  Either way, the last metres are climbed without skis as they are steep and rocky.

Descent

By the same route. It is possible to go fairly low on the S face and then climb back up a bit to the plateau at the W of the summit. Get to the foot of the teleski, by initially skiing down a broad bowl and then along farm track.