How did Cangshan and Erhai in Dali, Yunnan get their names?

Dali used to be the geology of oceans and lakes. After the crustal movement, the mountains fluctuated and the depressions became the sea. Cangshan Mountain is formed by metamorphic rocks and shale (marble), and the vegetation (azalea, pine, bamboo and fir) is well protected, giving people a light green feeling, so people are used to calling it Cangshan Mountain. Erhai Lake: First, it flows into Erhai Lake from rivers in Eryuan County, such as Eryuan, Yufeng River and Zibi Lake; Second, Erhai Lake is like a human ear.