Agree with the above . When you talk to Minthara in the Goblin camp and she interrogates you about the grove's location,
you can try to mislead her by giving a false direction. However she will tell you that you've been misled and that this area has already been thoroughly searched by her forces.
So storywise, the region is much larger than shown on the map, and you'll have to use your imagination to make things fit.
