Ok, so I'm guessing you want to know a bit about Scrapwall, well here's a bit of a rundown (you'll need to look at the big map here).
Area E: The unclaimed territories. These haven't been claimed by any of the gangs, there are usually bandits and scavengers there but they tend to maintain a low profile and don't tend to travel about a lot.
Area F: The Clockwork Chapel. There's a priestess of Brigh who lives there called Dinvaya. She's a bit of an outcast and an eccentric but basically ok.
Area G: This is a smaller area belonging to the Smilers.
Area H: The Headquarters of the Smilers. They're led by a hobgoblin called Marrow.
Area I: Redtooth Raider's territory: Led by a gang of Ratfolk.
Area J: Redtooth's warren - the main hq of the ratfolk.
Area K: Empty as far as I know.
Area O: The Haunted Canyon: Not been here myself for several years but people claim its haunted.
Area P: There's some kind of wreck here, can't tell you much more.