Domina

"3. The largest still-alive behemoth* is found in the Western Dominion, on Bivve. It resides in the Tache Pass, where it guards the entrance near Quiet Mountain, which it considers to be part of its territory, and is generally friendly and receptive to communication. 

Though initially classified as Icean 1203, most refer to it as ‘Domina’ from its name ‘Ovaal Dominates, Oversees, Ever-Watches the Ice-Capped Ridges”. It is about 40 feet tall at the shoulder.

*As far as anyone who doesn't live on Evenne is concerned, at least."