So we have David, our adventurer, strolling through the woods around the village...

However, he feels quite lost, surely a map would be of great help... aha!

As you can now see, he is in Inya Village, and his spot is highlighted in yellow. you can see where 'important' things are, like quest markers, and the exit zone so he can skittle out of the forests when he needs to.
However, to add a little flair and
[Exploration] to the game, the maps wouldn't come pre-filled, and while he would know how large the forest actually is (and where he can exit to the next zone) he can't make a beeline for it, since the map would be obscured!
(Well, that wasn't quite obscured, but blanked out, oh well...)
Oh wow, while we were talking, David has managed to go all the way across the globe to a distant town in the desert! what an absolute madman!

David has
absolutely no idea where he is, however he is smart enough to pull out a map of that actual zone, and not try to transverse the deserts like he did with the forests, therefore, he pulls his
other map out...

And voila, David now knows exactly where he is.