La Serpentine

Mont Blanc de Cheilon (also spelled Mont Blanc de Seilon) is a mountain of the Pennine Alps, located in the Swiss canton of Valais. The mountain lies between the valleys of Bagnes and Arolla. Culminating at 3,870 metres above sea level, it is one of the highest summits between the Grand Combin to the west and the Dent Blanche to the east. The massif is glaciated, with the Cheilon Glacier to the north, the Giétro Glacier to the west, the Brenay Glacier to the south and the Tsijiore Nouve Glacier to the east. The first ascent of the mountain was made by Johann Jakob Weilenmann and J. Felley on 11 September 1865.

The Brenay Glacier (French: Glacier du Brenay) is a 5.95 km long glacier (1973) situated in the Pennine Alps in the canton of Valais in Switzerland. In 1973 it had an area of 9.96 km2.

Pigne d'Arolla (3,796 m) is a mountain in the Pennine Alps in Switzerland. The first ascent was made by A. W. Moore and Horace Walker with the guide Jakob Anderegg on 9 July 1865. It is commonly climbed as part of the Haute Route.

The Cheilon Glacier (French: Glacier de Cheilon) is a 3 km long glacier (2005) situated in the Pennine Alps in the canton of Valais in Switzerland. In 1973 it had an area of 4.56 km2.

The Dix Hut (French: Cabane des Dix) is a mountain hut of the Swiss Alpine Club, located south of Hérémence in the canton of Valais. The hut lies above the Cheilon Glacier, at a height of 2,928 metres above sea level, approximately halfway between the Lac des Dix and the Mont Blanc de Cheilon. The Dix Hut is the starting point of the ascents of Mont Blanc de Cheilon, Pigne d'Arolla and La Luette. The shortest accesses to the hut are from Arolla (via the Chèvres/Riedmatten Pass) and from the Grande Dixence Dam.

The Tsijiore Nouve Glacier (French: Glacier de Tsijiore Nouve) is a 4 km (2.5 mi) long glacier (2005) situated in the Pennine Alps in the canton of Valais in Switzerland. In 1973 it had an area of 3.2 km2 (1.2 sq mi).

La Ruinette is a mountain of the Swiss Pennine Alps, overlooking the Lake of Mauvoisin in the canton of Valais. With an altitude of 3,875 metres above sea level, it is the highest summit between the Grand Combin and the Dent Blanche. La Ruinette lies close to the better known Mont Blanc de Cheilon which has almost the same height (3,870 m).

The Otemma Glacier (French: Glacier d'Otemma) is a 7.7 km (4.8 mi) long glacier (2005) situated in the Pennine Alps in the canton of Valais in Switzerland. In 1973 it had a length of 8.7 km (5.4 mi), and an area of 17.5 km2 (6.8 sq mi) but, like most other alpine glaciers, is known to be receding. By 2010 it had receded a further 1.2 km (0.75 mi) from its 1973 position. In summer 2018, the snout zone (terminus) of the glacier collapsed.

The Col de Chermotane (also known as Col de Charmotane) is an Alpine pass located in the Swiss canton of Valais. With an elevation of 3,037 metres above sea level, the Col de Chermotane is the lowest pass between the valleys of Bagnes and Hérens. The pass lies a few kilometres north of the main chain of the Alps and is covered by the Otemma Glacier. It connects Chanrion to Arolla, both in the upper part of their valley. The pass is located between the Pigne d'Arolla (north) and the Petit Mont Collon (south).

The Vignettes Hut (French: Cabane des Vignettes) is an alpine hut, located south of Arolla in the Swiss canton of Valais. It lies at a height of 3,160 metres above sea level, at the foot of the Pigne d'Arolla and near the Col de Chermotane in the Pennine Alps. All accesses to the hut involve glacier crossing.The Cabane de Vignettes is a famous stop for those that walk or ski the Haute Route, Chamonix–Zermatt. This Haute Route was first established on foot in 1861 by English mountaineers.

The Giétro Glacier or Giétroz Glacier (French: Glacier du Giétro) is a 4 km long valley glacier located in south-western Switzerland. The 1818 Giétro Glacier catastrophe, which led to a lake outburst flood, is one of the most famous and most disastrous historical cases in the Swiss Alps.

The Petit Mont Collon is a mountain of the Swiss Pennine Alps, located south of Arolla in the canton of Valais. It lies south of the Col de Chermotane and west of Mont Collon.