Huastec

Veracruz state: 60 villages; San Luis Potosí state: 12 villages; Cerro Azul on southeast edge, Tepetzintla on south edge, Tantima on north edge, Santa María Ixcatepec on west edge; Amatlán Tuxpan, Galeana y Zaragoza Vieja, San Francisco Chontla, Tamiahua, and Tancoco; east of Huasteco Veracruz-Llave.