Sadaogou, the source of Youshui, is an ancient town with a history of more than 800 years. Youshui flows from north to south next to the town, and the town is built close to the West Bank of the river. It is known as "choking the hub of Sichuan and Hunan and guarding the throat of Western Hubei". Yushangzhong, the boss of Yujia Inn beside the ferry, gave his young life to the Red Army trapped in the snow capped mountains by the enemy's heavy troops. His younger brother gave his young life to distract the enemy. As the old revolutionary base area and the red homeland in the Western Hunan Hubei region, countless people have died for the revolution. This article is just a microcosm of them.