Siberia. Siberia is located in the northern-central part of Asia, largely in Russia. This vast region constituting almost all of northern Asia is an Arctic Tundra. Its proximity to the Arctic Ocean explains its presence in the tundra zone.Its natural landscape is sparsely populated amidst its vast plains.iberia. Siberia is located in the northern-central part of Asia, largely in Russia. This vast region constituting almost all of northern Asia is an Arctic Tundra. Its proximity to the Arctic Ocean explains its presence in the tundra zone. Its natural landscape is sparsely populated amidst its vast plains.