paper mill, located in the nearby village of San Rafael. This mill elevated the area economically, and was considered one of the most important industries in Mexico from 1930 to 1970. Notable sites The Temple of San Luis Obispo, with the adjoining Capilla Abierta (Open Chapel) were built in the 16th century by the Franciscans as part of the Monastery of San Luis. The first church was built by Friar Juan de Rivas which opened in 1532. The larger complex was constructed between 1585 and 1591. The church is relatively simply decorated with only roses on the jamb of the main doors. In the central nave, there is a large relief of Saint Francis with the stigmata. The church has only one nave with a polygonal space for the main altar. This is covered by a barrel vault with false ribs painted on the ceiling. The interior has a lavish Mexican Baroque altarpiece done in cedar representing the Visit of the Virgin. The paintings on this altar were done by Baltasar de Echave The cloister has frescos with scenes of flora and fauna and human figures, as well as portraits of Martin de Valencia and Saint Clare. Friar Martin de Valencia died in Ayotzingo and is interred in the Tlalmanalco church. Tlalmanalco was one of the first sites to have an “open chapel,” and is one of the very few places where one can be found intact today. In the open chapel was where mass was offered to natives who would not enter the dark confines of the typical church. The Capilla Abierta is done in Mexican Baroque style and is considered an interesting example of “tequitqui” art. The word “tequitqui” is from Nahuatl, meaning “vassal.” This expression was used to refer to artistic works, especially sculpture, that had Christian themes but was done by indigenous craftsmen. The Capilla Abierta has a trapezoidal layout, left incomplete. Five arches with capitals finished with reliefs and a frieze that follows the outline of the arches filled with human figures. These arches were reserved for persons of high social rank. The arch behind these was most likely reserved for the altar. The interior is “proto- renaissance” and decorated with Italian-style motifs and figures that seem to represent indigenous bestiary. Images includes telamons, male goats (to represent lust) and a portrait of Friar Martin de Valencia, and Saint Claire. The mix of Christian and