Which mountain range separates Europe from Asia?

The Ural Mountains serve as a natural boundary separating Europe from Asia. This mountain range extends approximately 2,500 kilometers (about 1,550 miles) from the coast of the Arctic Ocean in the north to the borders of Kazakhstan in the south. Geographically, the Urals have historically been recognized as the dividing line between these two continents, primarily due to their location and the significant cultural and climatic differences across the range.

In contrast, the Andes and Rocky Mountains are located in South America and North America respectively, and do not have relevance to the separation of Europe and Asia. The Appalachians, found in eastern North America, also do not play a role in delineating Europe from Asia. Thus, the Ural Mountains stand out as the correct choice for this geographical division.