The organisation named Communauté de Communes de Millau Grands Causses is a group of municipalities located in the departments of the Aveyron, of the Lozère. The total population of this intermunicipal organisation is 29914 inhabitants, spread across a surface area of 511.68 km². The population density is 38 inhabitants/km². The altitude varies between 340 metres and 1011 metres. The Communauté de Communes de Millau Grands Causses public intermunicipal cooperation establishment comprises the 15 municipalities listed below.