Los Atlixcos, also known as Cerro el Abra, consists of a broad area of lava flows topped by two large cones at the eastern end of the Mexican Volcanic Belt along the Gulf of Mexico about 80 km NW of the city of Veracruz. The two cones, together known as Cerro los Atlixcos, lie 2 km apart with the larger one to the W. A broad area of basaltic lava flows extends primarily to the E and NE, reaching the coast about 9 km from the western cone. The boundaries of the lava shield are defined by the Río Santa Ana on the NE and the Río El Tecuán on the S. Negendank et al. (1985) considered them to be of Holocene age based on morphology. Other Quaternary cones are located to the NW, and a group of cones and silicic lava domes of Tertiary-to-Quaternary age were constructed along the coast to the SE.