"Toward the end of the Late Classic periiod, Becan was a center with at least two foci of activity -- the plazas at the southeast, and the center of the site defined by the dry moat constructed hundreds of years earlier. By this time the dry moat was not being kept clear of refuse, but the seven causeways that crossed it would still have functioned as routes to and from the center."
(Potter 1977:10)