Rivervale -- One or Two Maps?

[Damiani]

Forgive my ignorance, new to the zone and all, have a map which is green with some PoIs and such, however .. once I head completely to the right, and towards the "Circular Hut"? (NE corner, Library building) .. my icon vanishes nor does any 'eastern' map appear.

Are there two maps to Rivervale, or one? Thought I'd throw this up and ask.

Fantastic work, for those who've worked on this project, I'm in heaven.

- Damiani