Got shocked by wild flowers tile?
Well anyway, I also don't seems to see/found any mines at all.
Actually, now that you bring it up, I had one instance where the ore mine did show up on the 3D map, but, when I moused over, the description said something about wild flowers and prestige.
Anyway, this puzzles me. The games in the first build spawned mines. This absence seems to be some peculiar to 2-A.