Lǐshān
Lishan is the name associated with a mountain pass south of Xinyang, between the Tongbai and Dabie ranges. The gap lies on the watershed between the Huai and Yangtze river systems and opens a route through the hills between the central plain and the south. An ancient county named Lishan gave the pass its Tang-period name, Lishanguan. The county had already been abolished, but the pass endured and later became known as Wushengguan.