Elf Sea

An inner sea or a great lake of eastern Pelorian wild.
 * It divides the land of Garsting and Balazar, Elder Wilds.
 * In the legend of Ustrandi, it was created from the war between the Ancestor Tribe and Kalrius.
 * The leader of Kalrius called Darnlo the Red got help of Devkuroski, created great ice field.
 * When Brighteyes Clan betrayed the people of Kalrius, they made peace with Ancestor Tribe, set fire which melted all the ice.

Source:Ancestors of the Lenshi King by Greg Stafford