High dragon

High dragons are fully mature adult female dragons, the rarest of all dragonkin. At the end of the Blessed Age, many in Thedas believed that all the dragons had vanished until one went on a rampage in the Frostbacks. Divine Faustine II declared the next age to be the Dragon Age. The sight of the dragon's rise was thought to be a good omen for Loghain Mac Tir and the rebels, who went on to defeat the Orlesian army at River Dane.

Behavior
High dragons hollow out massive lairs for themselves, for they need the space to house their harem of drakes as well as their eggs and the dragonlings. Living for more than a thousand years, they are seldom seen and spend most of their time sleeping and mating, living off the prey their drakes bring back.

Once every hundred years or so, the high dragon prepares for clutching by emerging from her lair and taking wing. She will fly far and wide, eating hundreds of animals, most often livestock, over the course of a few weeks and leaving smoldering devastation in her wake. She then returns to her lair to lay her eggs and will not appear in the skies again for another century.

Involvement
There are two (optional) high dragon encounters in Origins and two in Awakening. Please see the relevant quests for details.

Mountain Top
Notably, this could be the dragon which the Dragon Age was named after since the dragon which rampaged in 8:99 Blessed was from the Frostback Mountains.

Loot
x2

Dragon Age: Inquisition
There are ten high dragons in Dragon Age: Inquisition.
 * 1) Fereldan Frostback       (Hinterlands)
 * 2) Northern Hunter          (Crestwood)
 * 3) Abyssal High Dragon      (Western Approach)
 * 4) Gamordan Stormrider      (Exalted Plains)
 * 5) Greater Mistral          (Emerald Graves)
 * 6) Hivernal                 (Emprise du Lion)
 * 7) Vinsomer                 (Storm Coast)
 * 8) Sandy Howler             (Hissing Wastes)
 * 9) Kaltenzahn               (Emprise du Lion)
 * 10) Highland Ravager         (Emprise du Lion)

Other appearances
A high dragon appears in Dragon Age: Dawn of the Seeker during the attack on the Ten Year Gathering at the Grand Cathedral.

Another high dragon is depicted in Dragon Age: The Silent Grove guarding the Silent Grove in the Tellari Swamps and its mistress Yavana.

In a flashback memory recited by Sten in Dragon Age: Until We Sleep, a mysterious Witch of the Wilds leads a simple dog handler to a cave where an ancient high dragon lays dying, after which the man slits the beast's throat and drinks its blood in order to gain its power.

Trivia

 * The Archdemons take the form of massive corrupted high dragons.
 * The Cult of Andraste believes the high dragon located at the Mountain Top area is Andraste.
 * To become a true Reaver a ritual must be done using dragon blood, although, wyvern blood may be used to unlock the Reaver powers, as possibly done with the Warden.