While under heavy enemy fire, Red Army soldiers crawled across the bare iron chains of the Luding Bridge in May 1935. Home to this celebrated battle on the Long March, Luding County will forever be associated with bridges. Swaying over the raging Dadu River, this simple suspension structure is a symbol of the spirit of the Chinese people. Today, a new generation of bridges stands tall — the Detuo Extra-long Bridge, the Mogangling Extra-long Bridge, and the Luding Dadu River Extra-long Bridge on the Sichuan-Xizang Railway. These modern marvels carry expressways, railways, and local roads, turning once-impassable gorges into smooth thoroughfares. The bridges of Luding County tell a powerful story — a story of vast technological progress, a story of a nation undaunted by hardships.