Introduction to Lao Niubei: Although the ridge on Lao Niubei, a famous dangerous spot on Fenghuang Mountain, is slippery and difficult to climb, there is not a single step to climb, and you have to climb iron railings by hand. If there is ice and snow in winter, it will be a dead end. The strange and dangerous scene is no less than that of Canglong Ridge in Huashan Mountain.