Yanwo Town is located in the northwest of Hechuan, 54 kilometers away from the urban area. It borders Wanlong Town, Liemian Town, Qingping Town, Baozhensai Town and Xinxue Township in Wusheng County, Sichuan Province. Erlang Town, Longfeng Town, Sanmiao Town, and Gulou Town are bordered; within the jurisdiction, there are 7.5 kilometers of National Highway 212, 15.3 kilometers of provincial roads (Wangxing Road), and 42.3 kilometers of village roads. Every village in the town is connected to roads, and it is the gateway to the northwest of Hechuan. Transportation hub to Nanchong, Suining, Tongnan, Wusheng, Pengxi, etc.