I would like to ask if I arrived at Qilian at night from Jiayuguan, will I pass Qilian Snow Mountain on the way to Menyuan the next day?

I don't know what you mean by "Qilian Snow Mountain". Maybe you are referring to one of the following two: 1. Zhuoer Mountain Scenic Area, located in Qilian County, just near the county seat, not on the road from Qilian to Menyuan; 2. Qilian Mountain Nature Reserve, which is in Zhangye and not in Qilian Lian, let alone on the way from Qilian to Menyuan. <br/>If you are talking about going to the Qilian Mountains Nature Reserve, although it is under the jurisdiction of Zhangye, it is actually closer to Jiayuguan, and it is more appropriate to go directly from Jiayuguan. <br/>If you are talking about going to Qilian County, Jiayuguan is farther from Qilian County than Zhangye. It is estimated that it will be dawn when you drive to Qilian County at night. By the way, Qilian County is not on the way from Zhangye to Menyuan. <br/>The western region is vast and sparsely populated, and there are no-man's lands. It is recommended that those who are not familiar with the local area try to avoid walking at night. (It seems that you don't have a good concept of geographical orientation, and you didn't hire a local guide to lead the way.)