El Cóporo is a prehispanic archaeological site at the northern frontiers of the Mesoamerican cultural area, located at an elevation of 150 meters on the western slopes of the Santa Bárbara range (Sierra de Santa Bárbara), near the San José del Torreón community, and lies some 15 kilometres (9 mi) due south of its municipal seat and largest township, on the northwestern corner of Guanajuato state, Mexico.^[2]

• http://en.wikipedia.org/wiki/El Cóporo