C719 Yizhou Topographic Map

It turned out to be a map of mountains and rivers, and it wasn't even a normal map either. The map was very clear, and was different from a normal map of the world. It could be said that if a person were to master this map, it would be as easy as flipping his hand to obtain Yi Prefecture.

"Brother Yongnian, this map?" Although Meng Da had long been dissatisfied with Liu Zhang