From the official explanation of Mount Tai: On the left side of the road, you can see a smooth rock wall, which is pure natural and has not been manually operated. You can see the rock wall leaning against the sky, and we call it Baizhang Cliff. Baizhangya is flat and flat, and it is straight to the peak. Stand in front of the cliff, look around, and open your heart. If you catch up with the heavy rain, you can see the mountain flood, such as hanging the Yellow River, the waterfall with the cliff rock, three up and down, like the three clouds and dragons, the majesty, its majesty, for the most in the world. Everyone look carefully, you will see a gold nest in the middle of the cliff, it is said that the place where the greedy people stored gold before, of course, now no longer store gold, but also used to store what? Of course, it is mud. Let's look north again, that cliff is called the East Baizhang Cliff, under the cliff one day is called Heilongtan, you can see that the water flow is very rapid, the water stone fight, the nest pit formed a pool, because the mouth small belly is like a stone altar, and because the water depth is as blue and named. Everyone saw the pavilion in the east called Xixi Shi Pavilion. In the north section of Baizhang Cliff is called Baizhang Waterfall. It is the symbol of Taishan Xixi's beautiful water and the most wonderful work of Xixi's water. Flying down, the four seasons do not rest, or big or small, or roar or song, is the main vein of Taishan Spring water. Whenever the rainy season comes, Xixi River is full of water, the waterfall is wide, the water is as rapid as shooting, the thunder is coaxed, the water mist is layered, and the rainbow is flying. Under the waterfall, another pool of famous "Lao Longwo" waterfalls are down, rolls out, and first run down the big slope, rushing to the dragon pool. The red bridge you see is called the Longevity Bridge. It forms a landscape with Baizhang Cliff and Baizhang Waterfall Cliff. The Longevity Bridge was built by warlord Zhang Peirong in 1925. The reason why it is built is because of the green landscape around it, in order to avoid too monotonous colors, It was built in red. Below the bridge is the Baizhang Waterfall cliff. It is named after the Baizhang Waterfall. It is actually a cross-section of stone beams. The cliff edges are round and hidden. There is a white line that crosses things, so we call it the "yin and Yang boundary", because this line happens to be above the edge of the Baizhang Waterfall cliff, and the boundary is slanted. The danger of sliding down the Baizhang Waterfall is very great. In order to prevent the accident, Mr. Feng Yuxiang once set up an iron fence in the north of the Yinyang boundary in Taishan. After being destroyed by the flood, the fence has been reset several times, but tourists still have to pay more attention.