Introduction to the source point: The source point of the 5.12 Wenchuan Earthquake is Niuquan Gou. The gorge is 3 kilometers long and there is a village in the gorge - Zhangjiaping Village. During the earthquake, the earth tore apart, the sound was loud, and millions of cubic meters of rock fragments were ejected from the earth's crust, forming a huge seismic source vent and a rock flow nearly 3 kilometers long. Niuquangou instantly increased by 30 meters during the earthquake, all the houses in the ditch were buried, and more than 30 people were killed. The rebuilt Zhangjiaping Village follows the direction of the mountain and is built near the water. It adopts a post-vernacular architectural style that combines modernity with tradition, Tibetans with Han nationalities, and staggered floors to reflect harmonious symbiosis.