(Source: Storm King’s Thunder, Page 86)

Since these three forests has merged into a single location, I'm going to treat it as such. The Fire Giants slashing through the eastern section (for overworld travel) didn't sit well with the wood elf and barbarian locals, although Yakfolk kept them away. The possible drow influence I'm adding here won't make things any better. So, things are on edge.

Glimmerwood is also a good place for a Eldreth Veluuthra location, so that's another angle. If you use that, they'll be more into the southern part of the Glimmerwood. (Moonwood to the locals.)