Lanzhou Zhongshan Bridge commonly known as "Zhong Shan Iron Bridge", world first Yellow River Bridge. It's located at Riverside Road middle of the Baita Mountain ,Lanzhou. The bridge built in 1907, works by the German construction business, the old name"Chen-Yuan Bridge", 1942, to commemorate Sun Yat-Sen, Mr. and renamed the "Zhongshan Bridge".March 2011, the iron bridge maintenance work, increased by 1.2 meter.

蘭州中山橋是黃河第一條鐵橋，建於1907年，由德國公司承建，原名鎮遠橋，1942年為紀念孫中山先生，改名中山橋。2011年3月，這條百年老橋在加固修葺工程中升高了1.2米，表面理由是為防百年一遇的洪水，實際是為讓更大更高的黃河遊船通過。