Even knowing I want to reach a swamp before plains, the simple problem is that I have yet to find one next to a black forest. There's always atleast a thin strip of plains nearby with those damned deathsquitos completely ruining any attempts at getting to the swamp. I end up getting one-shot killed, running back zig-zagging between skeletons and greydwarves while wearing reserve armor to get my stuff back, skills plummet until I can barely hold a bow and my food reserves are exhausted. I really, really hate them and I'm pretty sure I'll quit playing again because of them.