The 1:50,000 scale is detailed and the quality of the Swisstopo mapping is amazing. Map 283S covers the area from the Grand Combin in the west to Zinal in the east. Clear overlays of ski and snowboard ascents and descents are marked and there is extensive info regarding local huts and refuges on the back also.
Swisstopo 283S is an essential map for anyone ski touring or splitboarding in the Arolla and Zinal region and is also a good choice for summer hiking and climbing too. On the back is a bonus section of the Valpelline in Italy.