sentences:  The immediately adjacent AOC of Clairette de Bellegarde remains listed as a Languedoc AOC.Between the low rocky hills and "garrigue" that mark the border of the Languedoc with the Provence, and the low sandy plain of the Camargue the Rhône delta, the soil is mostly a mixture of round pebbles ("galets") similar to Châteauneuf-du-Pape, and sandy alluvial deposit and red shale.The soil depth from 3 to 15 metres is largely responsible for the variations of style within this AOC.