Outside town, there is a massive pit called Tren'tar, but locally, it's referred to as The Scrape. This is where all the waste generated by a town ends up, tossed over the edge. That's the idea though, for a hundred years, the giant heap of trash grows smaller, some say at the bottom there's a giant machine that burns it, others guess that it's continually slipping into an even larger cave system.
In the last few weeks however, the pile has stopped shrinking.