Qinhuangdao, seaport city lying on the northeastern coast of Hebei sheng (province), China. It is situated on the Liaodong Gulf, at the eastern extremity of the Hebei Plain before the plain’s narrowing at the coast at Shanhaiguan, approximately 12 miles (20 km) to the northeast. The city’s immediate hinterland is a narrow and not particularly fertile part of the Hebei Plain, backed by barren mountains.

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