Chapter 645: Chapter 613: Horizontal 7 Vertical 8_1

Zhou Ning noted the size of the water flow, and everyone was somewhat taken aback. How to put it, at best, it could submerge an adult's ankles; this was a far cry from a ditch that could be five to six meters wide.

Mr. Zhao coughed and looked at the trench over a meter deep. After all, there were broken stones on the edge, making it possible to climb down.

"This flow of water would fit in tap water pipes, two four-inch pipes would have ample room to spare. Elder Feng, is this an underground river?"

"Yes, there's perennial snow cover up there. Depending on the weather, the degree of snowmelt varies, causing the natural formation of different amounts of water. It's already mid-October. It might still be scorching hot in your cities, but here, do you know how large the temperature difference is between morning and evening?