United States Boundaries Mexico -- See Also the narrower term Mexican-American Border Region Here are entered works on those areas of the United States and Mexico adjacent to their common border. Works on the northern part of Mexico, including the states of Baja California, Baja California Sur, Chihuahua, Coahuila, Durango, Nuevo Leon, San Luis Potosi, Sinaloa, Sonora, Tamaulipas, and Zacatecas are entered under Mexico, North.
