What are the level ranges for Northrend instances?
Utgarde Keep, Howling Fjord: 69-72 The Nexus, Borean Tundra: 70-72 Azjol-Nerub, Dragonblight: 70-74 Ahn’kahet: The Old Kingdom, Dragonblight: 73-76 Drak’tharon Keep, Zul’drak/Grizzly Hills: 74-77 The Violet Hold, Dalaran: 75-77 Gun’drak, Zul’drak: 76-79 Halls of Stone, Storm Peaks: 77-79 The Oculus, Borean Tundra: 77-80 Halls of Lightning, Storm Peaks: 78-80 Utgarde Pinnacle, Howling Fjord: 78-80 Caverns of Time: Stratholme: 78-80