 One of these satellite sites was Llano del Jícaro, largely a workshop for monumental architecture due to the nearby basalt flows.Monuments carved from Llano del Jícaro basalt can be found not only at Laguna de los Cerros, but also the large Olmec center of San Lorenzo Tenochtitlán some to the southeast.It is thought likely that Llano del Jícaro was controlled by San Lorenzo Tenochtitlán, either directly or through control of Laguna de los Cerros.