Lot of Forgotten Realms stuff used to revolve around the Dalelands. Shadowdale, Deepingdale, Scardale, etc...
I think it would be fun to have a game centered on that area, sandwiched between Cormyr and the city states to the north around, what was it?, the moonsea, I think? That's where Hillsfar and Zhentil Keep were. I don't know how much of that has changed over the various iterations of the setting though.
