Why Dongshan is the land of Long Mai in Taiyuan?

Long Mai has nothing to do with Dongshan. If it is said, it is estimated that it can be a little better than Xishan, because Taiyuan is called Dragon City because there were many emperors in Sui, Tang and Five Dynasties. Song Taizong looked for Mr. Feng Shui and thought that Zhoushan in the northern part of Yangqu County of Taiyuan was the dragon head, Tianlongshan in Jinyuan District of Taiyuan was the dragon tail, Taiyuan City was the dragon body, while Zhoushan and Tianlongshan belonged to Lvliang Mountain, and Taiyuan Dongshan was the Taihang Mountain, so Long Mai and Dongshan had almost no relationship, even if there was a relationship.