The Arctic Expanse is a vast region of the northern hemisphere, encompassing parts of Canada, Russia, Greenland, and Norway. It is characterized by its extreme cold temperatures and vast TUNDRA landscapes, as well as its icecap regions. TUNDRA is a type of biome found in the Arctic Expanse, characterized by its treeless landscape and permafrost soil. Icecap regions are areas of the Arctic Expanse that are covered in thick sheets of ice and snow.