These poorly drained plains may be the largest co-extensive wetland on the planet. This
"insect infested landscape of bog and fog" rarely rises above 120 m elevation.
The only change is the belts of raised beaches where the land is rebounding from the
retreating glaciers of the last ice age. Another transitional zone, the north is similar
to the Arctic, with few trees. The south resembles the Boreal zones, but with sparser
vegetation. The fauna consists largely of migrating waterbirds and Polar Bears.