Yo Chow, the treaty port of the province, stands at the outlet of the river Siang into this lake.
Kiu-kiang, the treaty port of the province, opened to foreign trade in 1861, is on the Yangtsze-kiang, a short distance above the junction of the Po-yang Lake with that river.
The most important commercial place, however, is the treaty port of Niu-chwang, at the head of the Gulf of Liao-tung.
The second road runs from the treaty port of Niu-chwang through Mukden to Petuna in the north-western corner of the Kirin province, and thence to Tsitsihar, Mergen and the Amur.
Connected with Anping by rail (26 m.) and laying south of it is Takau, a treaty port.
