The commune is located in the Campanian, chalky limestone of the Upper Cretaceous which occupies a large southern part of the Charentes.

A small eastern part is occupied by a terrain consisting of kaolinic sand, clays and pebbles dating from the Tertiary.

[citation needed] Two small streams, the Lariat and the Mathelon, cross the commune and are indirect tributaries of the river Seugne.

Many circular ditches remain from Protohistory (Bronze or Iron Age), identified by aerial surveys at Pérat, Moulin Blanc and Foucaud.

During the Hundred Years' War many underground passages were dug as refuges and to store food, they can still be found at Le Morillon, at Les Rouyers and Chez Bégaud.

It gave rise to numerous pilgrimages on Whit Monday, in which several communes participated: Chepniers, Baignes, Pouillac, Châtenet, Vanzac, Chantillac, Messac ....