In which mountain is Wang Wei's Farewell in the Mountain? Please don't copy and paste. I've been looking for it for a long time

It is not revealed in the poem. According to the poet's life, it is speculated that this mountain should be "Zhongnanshan"!

In his early years, Mo Mo was full of pride and ambition, which was reflected in the magnificent mountains and rivers in his landscape poems.

In his later period, he lived a life of being an official and a recluse, withdrew from the political stage and converted to Buddhism. In his later period, he wrote a large number of landscape poems, mostly depicting quiet rocks and clear streams, and rural pastoral charm.

It can be inferred from the style of this poem that it should be a later work. Combined with my retreat at mount zhongnan and Wang Wei's seclusion in his later period, it is inferred that this mountain should be the "Mount Zhongnan".