Introduction to the Changtan Reservoir Memorial Hall: The exhibition hall of the Changtan Reservoir Memorial Hall is divided into 4 parts, the preface, the construction chapter, the benefit chapter and the development chapter. A total of 87 historical photos, more than 50 pieces of physical materials, and recent written historical materials are on display. 8000 words. More than 30 pieces of labor tools and construction equipment were also collected when the warehouse was built.