Xishan District of Kunming city [[昆明市|昆明市|kun1 ming2 shi4]], Yunnan

the sun is nearing the western mountains; used to describe being at the end of one's life or a situation that is fast approaching its end or decline

The sun setting over the western hills, marking the end of the day

Literally meaning the sun is setting behind the western hills; used to describe a person approaching old age or a situation nearing collapse and ruin