Bajo Aragón
Lower Aragon was divided into the smaller administrative comarcas after the official delimitation of the Comarcas of Aragon in 1999. Its historical limits fall now within the Bajo Aragón, Bajo Aragón-Caspe, Bajo Martín, Andorra-Sierra de Arcos, Matarranya and Ribera Baja del Ebro comarcas, as well as some municipal terms of the Maestrazgo, Campo de Belchite, Bajo Cinca and Cuencas Mineras comarcas.