A globe was brought out, and the representatives gathered to take a good look at the possibilities.
The Elven Prince addressed the group. "There is a large area here in the middle of the wastes that is open, but it is just grassland, and nothing would stop the ferals from wandering. That could become a nuisance for everyone, not to mention that it might leave the target area empty.
But the mountains are almost completely uninhabited. So, if we pick a spot here, toward the centre of the range, just west of the passes that run near Forest Grove, we should be able to put them in a spot where they can't leave.
This is the spot that I have in mind, and as you can see, it is a deep valley, with a lake that drains underground, but filtered through gravel, so there is no way that the occupants will be leaving that way.