Introduction to the ancient bridges in Lijiang: There are 354 bridges on the Yuhe River system in the ancient city of Lijiang, with an average density of 93 bridges per square kilometer. The forms include covered bridge (wind and rain bridge), stone arch bridge, stone slab bridge, wooden plank bridge, etc. The more famous ones include Suocui Bridge, Dashiqiao, Wanqian Bridge, Nanmen Bridge, Ma'an Bridge and Renshou Bridge. Among them, Dashiqiao is the first of the bridges in the ancient city, also known as Yingxue Bridge.