Option 1
Frostmere Crypt, a Nordic ruin located south-southwest of Dawnstar, on the hold border. I can reach it by taking the main road from Morthal east until I cross the border into The Pale. Just passed the border is a small trail that leads east up to the ruin
Option 2
Frostmere Crypt, a Nordic ruin located south-southwest of Dawnstar, on the hold border.
More detail? Or more vague?