According to Er Ya Shi Shan, "Shu" means "independence", because Dashushan has no attachment to mountains and houses, but is just a lonely person.
It's a mountain, so it's called Shushan. According to the Records of Luzhou County, "There are monks of Shu building temples here, and I miss my hometown.
Spring gurgled out and tasted Qutang Gorge, hence the name Shu Jing. So some people say that Shushan is named after it.
Relatively speaking, the former statement is more reliable, but it is difficult to verify.
The latter statement is mostly a kind of folklore, which can't be said to be impossible, but it seems to add the magical color of Dashu Mountain invisibly.
The concept of shushan is more handed down from the fairy gathering place in the legend of shushan knight errant. Is there in reality? Just say yes. You can't peek at the Xianjia mansion unless you are destined to.
The shooting location is mainly in Hengdian, Zhejiang.