the liaodong peninsula lies on the northern shore of the yellow sea, dividing the liaodong bay (the largest of the three bays of the bohai sea) to its west from the korea bay to its east. it forms the southern part of a mountain belt that continues northward in the changbai mountains. the part of the mountain range on the peninsula is known as the qianshan mountains, named after qian mountain in anshan, which includes dahei mountain in dalian.