Geology and Geomorphology of Zanhuang Zhangshiyan National Geopark in Hebei Province

Zhangshiyan is one of the highest peaks in the middle part of Taihang Mountain, with an altitude of1774m. The rocks in Zhangshiyan area were formed 1 100 million years ago. It is a landform formed by the comprehensive action of water erosion during the rapid uplift of Taihang Mountain. Cragginess Rock is located in the Taihang Mountain stretching for thousands of miles, and stands out from the crowd with its peculiar structure. The three-story Chibi peaks span the sky. It is named craggy rock landform by geologists and geographers. "Zhang Shi Triassic", commonly known as "Triassic", is a three-level cliff with a height of100 ~150m, and is called "HongLing". The north-south direction stretches 10 km, also known as "Hundred Miles Red Cliff". Between two steep cliffs, there is a platform with gentle slope, and a natural plank road is formed by easily weathered thin sandstone and shale. There is a primitive secondary forest above, green as blue in spring and summer, and dyed in late autumn. The Triassic cliffs, except the limestone at the top, are mostly composed of red timely rocks. Looking from a distance, Chibi is picturesque and magnificent. Jieshiyan is different from the beauty and strangeness of the mountains and rivers in the south of the Yangtze River, which is characterized by its majestic momentum. Specific features: First, the Great Wall of Ya Dan is continuous, just like a red Great Wall stretching for hundreds of kilometers; Second, the U-shaped valley is steep and peculiar, with a diameter of 90 meters, a radian of 250 degrees and a wall height of 100 meters. Many U-shaped valleys are connected, forming a rare natural echo wall in the world; Third, stepped cliffs run through the whole territory; Fourth, vertical Gu Duo; Fifth, the rock is broken and the edge is sharp. These features make tourists immersed in it, just like enjoying the magnificent wonders carved by nature in a widescreen cinema. Due to the distribution of steep cliffs, many wonderful scenery are distributed on the platform that looks like a staff, making tourists feel like enjoying the symphony of nature. In addition, this landform is of great value in geoscience and scientific research.

The largest natural echo wall in the world

In the middle of the craggy rock scenic spot, there is a semi-circular forest landscape with winding stone steps and winding paths. The largest natural echo wall in the world is located on the mountainside. Echo wall, also known as echo cliff, is as high as 100 meter, almost vertical. The arc length is more than 300 meters, the radian is 250 degrees, and the surface of the arc wall is smooth. If you scream at the sky, or clap your hands and knock on the stone, you will get several times the original sound from the other end. "The empty valley will ring, and the sorrows will turn for a long time." Looking up at the echo wall is like a huge patio. A clear stream is thrown from the top of the cliff, such as pearls falling on a jade plate, rustling, which is called "scattered pearls on a cloud cliff".