From Encyc

Siberia is a region of Russia that extends from the Ural Mountains to the Pacific Ocean. It has a very cold climate, and the land consists mainly of evergreen forests and tundra. It was sparsely populated until the 1600s, when Russian explorers established outposts all the way to the Pacific Ocean.

Siberia is rich in timber and other natural resources.

Lake Baikal, the deepest lake in the world, is in Siberia.

The Trans-Siberian railroad connects Moscow to the far east.

Native Americans are thought to have originated in Siberia, and passed to the new world via a land bridge that was present in place of the Bering Strait.

During the Russian Revolution, the Whites held out for some time in Siberia, using Omsk as a base. The Czar and his family were murdered at Ekaterinberg.