网页Chengdong is a town in Ya'an, East Sichuan, Sichuan. Mapcarta, the open map. SW China. Sichuan. East Sichuan. Ya'an. Chengdong Chengdong is a town in Ya'an, East ... map to travel: Chengdong. Localities in the Area. Bifengxia. Town Photo: NoGhost, CC …