Please note that this map is not to scale in any way. Strictly speaking Mullenwald is fairly expansive. The cities listed below are major geographical placements (either in general or for game purposes), but the actual plains and forests are home to innumerable small farming or trade towns, especially along the highways.
Don't ask for an exact mile scale. I will kill you.
Key:Deichschleuse is a city of water, and the major port gateway for Solaria sea trade. It's built a little like Venice; there are water streets, and then a solid foundation of bedrock poured into some of the tidal lakes to produce solid ground for buildings.
Tötenschloss is a ghost town. Presumably it was once inhabited, but in the time of the Mullenwald monarchy it had been long-since abandoned. The homes and buildings that remain are surprisingly 'modern', but the Magisterium has banned all archaeological expeditions to Tötenschloss after a number of mysterious disappearances. The city is quite large, but completely abandoned, and the source of many a ghost story. Parents often threaten misbehaving children by implying they'll be sent to live alone there. Its major topographical feature are large stone quays, and a now-useless stone lighthouse.
The northern mountain range is, as previously mentioned, the Swordedge Mountains. They're much taller than AW2's map palette allowed me to make them look. They run pretty much the entire nothern border between Mullenwald and Solaria. On the other side of the Swordedge range is mostly arid steppe, then desert.
Most 'roads' are mostly dirt postroads. The Iron Highway runs west from Stromgarde through a vast expanse of plains and ends at Heidelstrasse. The Copper Highway runs south from Stromgarde to Lucia. The highway east of Stromgarde has no name, but after the Royal Bridge is splits into the Highway Auric, which runs to Magdalene, and the Highway d'Argent, which runs south to Deichschleuse. The Lock Valley cuts through the mountains west of Magdalene, and despite having no actual 'highway', it's considered the major trade thoroughfare into Solaria.
The Swordedges produce two major meltwater rivers: the River of Divide (usually simply called the Divide or the Great Divide) in the west, and the Lodestone River in the east, which splits into the Greater (western) and Lesser (eastern) Lodestones northwest of Stromgarde. Only two of the major bridgeworks have names: the Royal Bridge far east of Stromgarde, and the Chess Bridge just west of it, so named for the black and white uniforms of its guard contingent.
The sea has no name; it's simply "the sea". Not all reefs are represented, but most of the Mullenwald coast is surrounded by sudden shallows and reef areas that make crossing it by large ship practically impossible over any considerable difference. Lately captains have begun to make passage over the reefs near Deichschleuse possible, which allows for a burgeoning sea trade with the ports of Solaria to the northeast around the subcontinent's edge.
Only the great forest expanding from Deichschleuse to Magdalene has a name: the Emerald Forest. It is mostly untamed wilderness, though communities and villages of hunters live along its edges. The mountains it backs against are the Encircling Peaks, called so because supposedly there is a legendary valley just beyond them encircled by the tall glacial peaks. Nobody who's gone to investigate this has returned alive, however.