Zinacantepec is a municipality located just west of the city of Toluca in Mexico State, Mexico. The municipal seat is the town of San Miguel Zinacantepec. Zinacantepec is Nahuatl for "bat mountain" and its Aztec glyph is a bat on a mountain. It is named after a small mountain which contained two caves which used to be filled with thousands of bats. In the 18th century, the residents of this mountain moved to settle alongside the Franciscan monastery established here in the 16th century.