Depends on if you're scaling or going into it's tunnels down there. Both've got a lot of rock and steel types out there, and in the caves you'e got some worry about a cave in. On the mountain itself though it gets really cold towards the top and the weather's been extra nasty in the last month or so. Enough to make pokemon move out of their normal habitat, which can make them edgey.

[ Some of that she observed herself, others she picked up on reports issued about one of the missions she was on ]