Thornwood

Thornwood was a forest on the Lake of Steam. As of 1372 DR it was inhabited by evil humanoids and at least one beholder. There was a legend that every ten years, in a particular grove in the forest, the Green's Sword would sprout and could be claimed by anyone using it to fight evil.

By 1369 DR, the Twisted Rune had placed a magical gate in the forest to allow for instantaneous movement to other locations.