Here are all the maps I know of.
Althanas
Alerar
Salvar
Raiaera
Fallien, Corone and Scara Brae
Some don't match the general overview of Althanas (notably, Salvar which looks way thinner) but it should give you a general idea. Otherwise, for the descriptions, look in each Region's stickies with titles that refer to geography.
You're lucky I looked for all of them for my solo.