In the town of Teocaltitán de Guadalupe, there are vestiges of an archaeological zone, which has two teocallis and a semi-destroyed ball court; its origin corresponds to the Tecuex Indians. Also in the surroundings of the municipal head, there are architectural structures, mounds, tombs and fortifications in poor condition.
In November 2011, research, rescue and restoration work began on the remains that made up the archaeological zone located in Teocaltitán de Guadalupe, however the exploration works have been carried out since 2008.
The project, headed by the archaeologist Marisol Montejano, was approved by the INAH Council of Archeology in November 2008 and is part of the Archaeological Route promoted by the Ministry of Culture. The investment amount for the works this year is 7 million 335 thousand pesos, as announced in a statement by the state agency. In 2008, 65 million pesos were allocated last year and 10 million in 2009.
The site is important because it belongs to the Ixtépete-ElGrillo complex of the Mesoamerican Epiclassic, between 450 and 900 years AD. The development of the project is headed by Marisol Montejano, an archaeologist from the National Institute of Anthropology and History (INAH), who will have a In charge of four archaeologists and a team that will be focused on bringing to light data such as what culture it inhabited and its characteristics.