Matarraña (Spanish: [mataˈraɲa]) or Matarranya (Catalan: [mataˈraɲa]) is a comarca in eastern Aragon, bordering the Spanish Autonomous Communities of Catalonia and Valencia. It is located in Teruel Province, in the mountainous Sistema Ibérico area.
Its capital is Valderrobres, and it borders the Aragonese comarques of Bajo Aragón-Caspe/Baix Aragó-Casp, and Bajo Aragón, the Catalan comarques of Terra Alta, Baix Ebre, and Montsià, and the Valencian comarques of Baix Maestrat and Ports.
La Franja (Catalan pronunciation: [la ˈfɾandʒɛ]; "The Strip"; Aragonese: Francha) is the area of Catalan-speaking territories of eastern Aragon bordering Catalonia, in Spain. It literally means "the strip" and can also more properly be called Franja d'Aragó (Aragonese Strip), Franja de Ponent (Western Strip) or Franja Oriental d'Aragó (Eastern Strip of Aragon) in Catalan (in Aragonese: Francha Oriental d'Aragón, "Eastern Strip of Aragon"; or simply Francha de Lebán/Levant, "Eastern Strip", or Francha d'Aragón, "Aragonese Strip"; in Spanish: Franja de Aragón, "Aragonese Strip").
La Franja is usually considered to be comprised by a part of the municipalities of the following Aragonese administrative comarcas: la Ribagorza/Ribagorça, La Litera/La Llitera, Bajo Cinca/Baix Cinca, Bajo Aragón-Caspe/Baix Aragó-Casp, Bajo Aragón/Baix Aragó and Matarraña/Matarranya.
Bajo Aragón-Caspe (Spanish: [ˈbaxo aɾaˈɣoŋ ˈkaspe]) or Baix Aragó-Casp (Catalan: [ˈbaʒ aɾaˈɣo ˈkasp]) is a comarca in eastern Aragon, bordering the Spanish Autonomous Community of Catalonia.
It borders the Aragonese comarques of Matarranya, Monegros, Bajo Cinca, Bajo Martín and Ribera Baja del Ebro, and the Catalan comarques of Terra Alta, Baix Ebre, and Ribera d'Ebre.