From the Rocher des Trois Eveques the watershed runs due north for a long distance, though of the two loftiest peaks of this region one, the Aiguille de Chambeyron (11,155 ft.), is just to the west, and the other, the Monte Viso (12,609 ft.), is just to the east of the watershed.
Hence the main watershed extends eastwards, culminating in the Aiguille de Scolette (11,500 ft.), but makes a great curve to the north-west and back to the south-east before rising in the Rochemelon (11,605 ft.), which may be considered as a re-entering angle in the great rampart by which Italy is guarded from its neighbours.
Once more the chain bends to the north-west, rising in several lofty peaks (the highest is the Aiguille de la Grande Sassiere, 12,323 ft.), before attaining the considerable depression of the Little St Bernard Pass.
Nor did it fare much better with the high peaks, though the two earliest recorded ascents were due to non-natives, that of the Rochemelon in 1358 having been undertaken in fulfilment of a vow, and that of the Mont Aiguille in 1492 by order of Charles VIII.
It is a poor and hilly district, the highest summits (the loftiest is the Aiguille de Chambeyron, 11,155 ft.) rising round the head waters of the Ubaye.