Europe and Asia are separated by the Ural Mountains. By the Ural mountains in the west, Asia is separated from Europe. The combined and together landmass of Europe and Asia is called Eurasia.
The Urals are amongst the world’s oldest existing mountain ranges. With its age of 250 to 300 million years, the elevation of the mountains is remarkably high. They formed during the Uralian orogeny due to the collision of the eastern edge of the supercontinent Laurasia with the young and rheologically weak continent of Kazakhstania, which now underlies much of Kazakhstan and West Siberia west of the Irtysh, and intervening island arcs.