Dingjun Mountain, located 5 km south of Mian County, Hanzhong City, Shaanxi Province, is an ancient battlefield during the Three Kingdoms period. It is known as "whoever controls Dingjun Mountain controls Hanzhong, and whoever controls Hanzhong controls the world". Dingjun Mountain is now a provincial scenic spot. Dingjun Mountain is famous for the killing of Cao Wei general Xiahou Yuan by Huang Zhong, a general of Shu Han, in the Battle of Hanzhong during the Three Kingdoms period. The first Chinese film, the Peking Opera Dingjun Mountain, is based on the story of Huang Zhong killing Xiahou Yuan in the Battle of Dingjun Mountain during the Three Kingdoms period.