 The territory of the commune includes the villages of Castelnau-Pégayrols, Estàlane and Castelmus, and in 2009 had 326 inhabitants.It is 5316 ha in area, and extends from 488 to 1101m.To the east are dry limestone soils of the Causse Rouge grazed by the milking ewes that contribute to Roquefort cheese.