Forgotten Vale

It is a large glacial valley hidden deep within the mountains on the border of northeastern High Rock and Skyrim. This location features its own unique flora and fauna and a handful of caves and subsections throughout. During the quest Touching the Sky, Serana describes Forgotten Vale's geography as "something out of this world". The area contains a large concentration of Falmer, who have built a series of walkways and camps throughout a canyon leading to the the Inner Sanctum, one of the last Snow Elf bastions left.

Geographic features
As the player exits Darkfall Cave they enter a snowy forest environment. As the Dragonborn advances through the forest they will come to a small pass in the hill. Once over the hill the player will be struck with a breathtaking scene of pure snow, and crystal clear waterfalls. Up farther ahead is a huge canyon where the Dragonborn has to traverse to get to the objective.

The valley is split into two main sections separated by a canyon that leads to a waterfall and a partially frozen river. The area between the two main sections is dominated by a large frozen lake.

Location
Access can only gained through Darkfall Cave during Touching the Sky, where the player has to visit five wayshrines around this location. For a walkthrough, visit the quest's page.

Word Wall
In the middle of the lake there is a stone jutting out, with a staircase leading up one side. Upon approaching this stone, the Dragonborn will learn a word of the shout Drain Vitality. The two Revered Dragons Voslaarum and Naaslaarum will then burst out of the ice.

Notable items

 * Unknown Books
 * Paragons
 * Ancient Falmer Armor
 * Ancient Falmer Crown

Creatures

 * Frost Trolls
 * Frost Giants
 * Falmer
 * Chaurus
 * Vale Sabre Cats
 * Frostbite Spiders
 * Ice Wraiths
 * Vale Deer
 * Voslaarum
 * Naaslaarum

Quests

 * Touching the Sky