Norrhart Domains is an Explorable area in the Far Shiverpeaks. The terrain is composed of open areas in the southeast and northwest, a complex system of cliffs in the southwest, a cave in the south, and many close passes. There isn't much of interest here.
Watch out for Baglorag Grumblesnort and his group, as they are very strong and can wipe an unprepared party. Even worse is that he has a large patrolling line, making it able to be twisted with other groups during battle.
There are several Ice Dart Traps scattered around the north-central area where the centaurs are, so pull them carefully away from the traps.
This area is very easily vanquished as long as you spread out before facing any foes.
A bit northwest from the exit to Drakkar Lake, there is a small clearing around a campfire where several Jotun can be found, and two of them will be fighting each other while the others cheer by saying "Smash good!" and the like. The "spectator" Jotun show up on the radar as friendly NPCs, but all will turn hostile if the party gets too close. The two battling Jotuns will be kept alive by automatic healing, which is removed when all Jotuns turn hostile.
Bug! If you pull the two fighting Jotuns from a distance (e.g. with a longbow) without triggering the other Jotuns, the battling Jotuns will remain in 'immortal mode', making it impossible to vanquish the area. This will be the case even if you subsequently trigger the event!
In HM Kilroy might show up; if so, he will spawn more enemies making it slightly more difficult.