These unique dragons can be encountered during the 'At the Summit of Apocrypha' quest, given by Frea at Skaal Village, Solstheim. You also need to complete 'The Path of Knowledge' quest, given by Storn Crag-Strider at Skaal Village, Solstheim. This frost dragon can be seen outside of Nchardak to the northeast of Tel Mithryn.

This undead dragon can be found at the Soul Cairn plane, which is accessible through the portal in the Castle Volkihar, Haafingar.

Sovngarde, Aetherius ('Sovngarde' and 'Dragonslayer' quests).

Throat of the World, Whiterun ('Alduin's Bane' quest).

Kynesgrove, Giant's Run, Eastmarch ('A Blade in the Dark' quest).

You will encounter him several times throughout the main storyline at the following locations: This dragon is the main antagonist of the game. Located in the northern part of the Solstheim island. There are two more dragon lairs that are available in other locations besides the kingdom of Skyrim: You can randomly face dragons in the open world, but if you wish a guaranteed encounter with a dragon, then you must visit one of the ten main dragon lairs, where these creatures protect ancient word walls (see the map above for exact spots):

Black-Purple Legendary Dragons (Fire, Frost).Red-Black Ancient Dragons (Fire, Frost).There are nine distinct kinds of dragons in Skyrim that can be distinguished by colors and elements: Where to Find Dragons in Skyrim Look for Dragon Lairs You will know where to find dragons, including random encounters, as well as unique dragons that play special roles in the world of Tamriel. This guide will provide you with all possible dragon locations in Skyrim.

Skyrim dragon locations map