Todd Howard teases that "maybe we'll use it one day," but primarily it was to give players something to see if they looked in that direction. None of it is in high detail - it's just background.
Fans speculated that perhaps the studio planned some huge DLC that would open up the territories. Bethesda have teased DLC is in the works, but leaving Skyrim?
"The reason they are there - and I will not say if we are or are not using them in the future - is when we first built the landmass for Skyrim we knew we were going to have these tall mountains," explained Howard.
"And what can you see see?" Early in the project they have views where you can see into the neighboring province from the other game. "We needed to have something", he said.
"It's not high detail," noted Howard. "If you walk there, from a distance it's - yeah, the stuff is there. And the thinking is, maybe we'll use it one day."
"But our larger worry was, I'm going to climb up on top of a mountain and look that way. What will I be able to see there? We try to cover all those angles as much as we can."
Should the Dragonborn hero stroll outside Skyrim for some adventuring, video gamer? Make it yourself?