Ciudad Miguel Alemán (syoo-DAHD mee-GEL ah-le-MAHN), city (1990 pop. 17,030), N Tamaulipas, 7 mi/12 km W of Gustavo Díaz Ordaz, on Mexico Highway 2, and on the Nuevo León state and U.S. (Texas) border. Marte R. Gómez Dam here has improved agr. and cattle. Active business influenced by the border bridge between here and the U.S. city of Roma (Texas).