Miranda do Douro
The structure of the Trás-os-Montes hierarchy is highlighted by the largest of these "medium"-sized cities (Bragança, Mirandela and Chaves), corresponding to the principal urban poles, and articulated by a complementary urban network, constituted by the seats of the municipalities of Alfândega da Fé, Boticas, Macedo de Cavaleiros, Miranda do Douro, Mogadouro, Montalegre, Ribeira de Pena, Valpaços, Vila Flor, Vila Pouca de Aguiar, Vimioso and Vinhais.