Introduction to the Map of the Northern Expedition: The Map of the Northern Expedition is a set of granite reliefs with the content of the Three Kingdoms. The first picture reflects the march of the Shu-Han army passing through Jianmen Pass during the Northern Expedition of the Three Kingdoms. The second picture reflects Zhuge Liang commanding thousands of troops and horses to pass through Jianmen Pass. The third picture reflects the scene of carrying grain and grass. The fourth picture reflects What's more, the musicians accompanying the army are playing instrumental music to promote and encourage the army.