The Val d'Illiez is a valley in the Canton of Valais, Switzerland. It separates the northern foothills of the Chablais Alps from the Dents du Midi. Starting from Monthey, the valley splits at Troistorrents: Val d'Illiez itself with the villages of Val-d'Illiez and Champéry Val de Morgins, between Troistorrents and Morgins Villages Troistorrents Val-d'Illiez Champéry Regions of Switzerland Val Dilliez Illiez Landforms of Valais