Hulaoguan is one of the most famous passes in China. It has a history of more than 2,000 years. It is very close to Xingyang and 20 minutes'drive away. The north side of the Pass is the dangerous Yellow River. The south side is Songshan. Its geographical position is extremely important. During the Three Kingdoms Period, the ruble of the Three British Wars and the defeat of Tang Taizong and Li Shimin by Dou Jiande, who had the superior troops, all took place here, a truly historic site.