Val d'Hérens is an alpine valley in the Valais canton of Switzerland . It was formed by the Hérens glacier, which retreated at the end of the last ice age. It is now the valley of the Borgne river, a tributary of the Rhone (confluence above Sion).

It extends from the Rhône valley to a number of high mountains - Dent Blanche , Dent d'Hérens , Mont Collon , Mont Blanc de Cheilon . It is a popular start point for mountain expeditions. The area has two mountain peaks over 4,000 metres in altitude: la Dent Blanche ("white tooth") at 4,357 m, and la Dent d'Hérens ("Hérens tooth") at 4,171m.