Calling these maps regional is my deliberate choice: I don't want to bother with different climate zones and similar things that need to be considered when generating maps of a continent scale. However, the scale is not specified here, so you can generate an island and treat it as a continent. The density of settlements is based on the fact that each map is made of hexes and I can't allow towns to be placed closer than 2-3 hexes from each other.