The elven capital of Kalenora, sacred home of the druids.

The elven people hold the ancient tree there sacred, and work towards it's health and preservation despite the near arctic conditions surrounding it.

It is said that the elven leader, Queen Valindra, communes with the ancient spirt of the tree, and uses that knowledge to lead her people.

Perhaps that's why she has sealed it's gates from entry from the outside world, preparing for some coming calamity...