But from the beginning of the mountain, the source of water must be investigated, and from the beginning of the dragon, the source of water must be investigated. There are four rivers in China, the Yalu River, the Yellow River, the Yangtze River and the Pearl River, all of which flow eastward into the sea. Nanlong is bounded by Yalu River, Yellow River and Yangtze River, with Kunlun Mountain as the ancestral mountain, and is divided into three dragons: north, middle and south.
First, the Yellow River and Yalu River are sandwiched by the northern dragon, starting from Kunlun and ending in the north of the three seas. One of them is Mount Tai in Hukou Dongyue. The other branch extends to the south and turns to the west to become a thunder head. The other three branches are Taihang Mountain, Hengshan Mountain and Yanran until the stone side of the Pingluan border stops.
Second, there is a dry dragon between the Yellow River and the Yangtze River, starting from the west and passing through Fengxiang in western Gansu. One dragon vein reaches the border of Dengzhou and Laizhou, and the other reaches the Zhili area of Cangzhou. The water source it produces is Jishui, which flows into the Yellow River, flows out from the south of the Yellow River, overflows into Chaihe River, reaches Qingzhou from the northeast and flows into the sea. The tributary Hanshui River flows into the Yangtze River in Hanyang, and Huai 'an flows into the sea.
Third, the Yangtze River and the East China Sea are sandwiched by the Southern Gan Long, both of which are in the south of the East China Sea. Its Long Mai starts from Minshan, gradually twists and turns to the west, and then turns south to Yunnan. One is Long Mai, starting from Jiankang, all the way to Jianghuai, and the other is from Lingzhou to Poyang Lake. Xiangshui originated in Lingling County, Yongzhou, reached Dongting Lake and extended into the Yangtze River.
On the great trend of the world, it must be surrounded by mountains and rivers. Mountains are the source of water, and water is the committee of mountains. All Long Mai originated in Kunlun, with Kunlun as its pillar, reaching the sky, where Yin and Yang meet, giving birth to everything, and Chinese civilization has developed.