Answer: The Yellow River musical fountain in Lanzhou is more than 100 meters long. Every city has beautiful musical fountains. The largest musical fountain in Lanzhou is located on the bank of the Yellow River in the middle of Beibinhe Road. It is about 100 meters long. meters, about 20 to 30 meters wide, it is a bright pearl on the scenic line of the Yellow River in Lanzhou. The musical fountain is a good place for people to relax and play.