This is the initial campiagn area; after moving through Zimon's Gate, the characters will find themselves at the top of a mountain road that brings them down onto the sotheast portion of the map. Referees could also begin in Dogwall or Molt without too much trouble. Dogwall is a day's walk (more or less) on the other side of the stone bridge, and Molt is upriver on an island in the glacial lake.
This was a bitch to draw, btw.