 Of the water in the municipality, 0.2% is in lakes and 0.2% is in rivers and streams.The former municipality is located in the Sierre district, on the right side of the Rhone river.It consists of the villages of Chermignon d'en Haut () and Chermignon d'en Bas () on a terrace, the hamlets of Champzabé () and Ollon at the bottom of the slope and a portion of the resort of Crans-sur-Sierre ().