Spanish is the native language in most of Aragón. The only official language, it is understood and spoken by virtually everyone in the region.Also, Aragonese is still spoken, in several local varieties, in the mountainous northern counties of the Pyrenees, particularly in western Ribagorza, Sobrarbe, Jacetania and Somontano. In the easternmost areas of Aragón, along the border with Catalonia, varieties of Catalan are spoken, including the comarcas of eastern Ribagorza, La Litera, Bajo Cinca, Bajo Aragón-Caspe, Bajo Aragón and Matarraña.