ucanha is a place in northern yucatán, mexico, where scientists dig up mayan ruins. it used to be a town where mayans lived. people lived in ucanha during the late preclassic period (ca. 300 b.c. — ca. a.d. 250). it was about 2.2 square kilometers in size. there were about 400 households. it was connected to a larger town, uci, by a wide stone causeway. uci is 13 km to the west of ucanha.