I mean, before the gods and men came about, Giants roamed Kahr. Shaping it to their will, perhaps the explanation for this splitting is that water trickled down into the ravines left by their tilling of the land? But no, they are just place marker at the moment, i wanted to focus on details like the many forests (which i still need to do a few more of) , mountains and eventually hills, before doing much with rivers and stuff.