Geographical environment of Rong county

Rongxian County is located between Rongda Mountain and Yunkai Mountain. It is high in the east, west and south, low in the middle and northeast, and inclined from south to northeast with a gentle slope. The mountains in the county overlap, valleys alternate with each other, valleys alternate with each other, and hills fluctuate. It is a county dominated by hills and mountains. The veranda is a rectangle with northwest-southeast trend. Rongxian county has complex landform types and diverse land types, including accumulation plains, terraces, hills and mountains. On both sides of the river are narrow plain platforms, and the mountains and hills gradually descend to the middle, showing the distribution of mountains, hills, platforms and plains in turn. In the central valley area, the hills are undulating, the valleys are vertical and horizontal, the surface is cut strongly, and there is no flat and vast plain.

Rivers in China flow into Jiang Xiu from southeast and west, and into tengxian from south to northeast. There is Rong Da Mountain in the northwest of the county seat. From northeast to southwest, it is about 35 kilometers long. There is Paradise Mountain in the southwest, which is a branch of Yunkai Mountain. It runs from northwest to southeast and is about 35 kilometers long. There is Jiaodu Mountain in the middle, and Fiona Fang is 34. 19 square kilometers. Its mountain surface is purple with weathered biological residue film, which is a special Danxia landform. The mountains are tall and straight, the narrow valleys are deep, the caves in the mountains alternate with each other, and the Dan Palace is extraordinary, which is the main landscape of Rong County. Rongxian county has a complex landform and diverse land types, including accumulation plains, terraces, hills and mountains.

The geological development process of Rongxian county is the development process of land-sea struggle, land-sea alternation and from sea to land. Multi-stage tectonic movement and magmatic activity have added rich and colorful contents to it, thus forming today's complex geological structure.

Rongxian County, located in the northwest of Yunkai Ancient Land, experienced four stages of structural development: Caledonian, Variscan, Indosinian, Yanshan and Himalayan. The deep Ordovician and Silurian sandstone shale deposited in the early Paleozoic was influenced by the strong crustal movement-Guangxi movement, resulting in folds and cracks.