It’s a mod I made years ago with a different account.
Fight up a snowy mountain pass.
It has a quest ‘aaPOTRQUEST01’ but the quest seems broken to me, the main point is the mountain pass though so who cares.
Takes about an hour and a half and is pretty challenging, lots of enemy and different types of attack so you need good defense.
Not follower friendly due to navmesh problems and there is a fair bit of platforming over wooden walk ways.
To start, speak to Jani in Dawnstar Inn to get the quest and listen to his musings, or just go straight to the boat north of the Dawnstar Sanctuary, and fight your way up to the peak.
Original URL: https://www.nexusmods.com/skyrim/mods/95746