Since there are (unfortunately) many inconsistencies in this game (such as the name and gender of Florina's Pegasus), and since there are two maps fought in Caelin (Chapter 10 and 15E/16H), I wondered if the game designers had the foresight to make the two maps consistent with respect to the geography around Castle Caelin... and it turns out they did (just barely)!
For reference, here are the two maps:
Notice that the overlap of the two maps, highlighted by the red square agree, including the mountain formations in the upper-left corner!
I am, however, somewhat concerned about where the river in the Chapter 10 map end up, but perhaps they just flow around the region, or something? At least we the mountain range from above Caelin castle being completed to the west in the Chapter 16 map.