A look down along the telephone and power poles, some at crazy angles. Surface structures often fall down here. This land is hollowed by impact sinkholes, and the tunnels that the buried fragments dig, trying to find their way back to the surface. The fragments are usually so dazed by impact, which has separated them from navigation systems, that they can't tell up from down, and so dig in any which direction. Lots of them, after a while, get used to being underground, and taking difficult for virtue, decided to stay there, rather than head up towards the surface (they've met others like themselves, who told them where up was, but of course they're not going to be heading in that direction anymore).