Mountain Yunmeng, a branch range of the Taihang Mountains, is located 15 kilometers to the south-west of Qi County seat.

The mountain is sometimes covered by the sea of clouds with the main peak rising 577 meters above sea level and other peaks standing one after another. With singing springs and scattered flowers in full bloom, the mountain has been a place of interest for tourists since the ancient times. Literati and celebrities of past dynasties set a foot on it, leaving a number of poems, inscriptions and carvings. Guigu, a famous hermit in the period of Warring States, is a typical example. During the period of anti-Japanese war and the civil war of China, some underground resistance organizations and liberation soldiers once stayed here and therefore it enjoys a nation-wide reputation.

It is here that Guigu established the first military school in the history of China. Many renowned militarists and political strategists such as Su Qin, Zhang Yi, Sun Bin, Pang Juan and so on were educated in the school. Hermit Guigu, from the Wei State in the Warring States period, was a great master of political strategy. He gave lectures on strategies to his disciples in the mountain and left us a book of 13 volumes on the art of wars.