What is Europe's highest mountain, using the Caucasus boundary?

What is Europe's highest mountain, using the Caucasus boundary? Mount Elbrus.

Using the Greater Caucasus watershed as the Europe–Asia boundary, Europe's highest mountain is Mount Elbrus, whose western summit reaches 5,642 metres. It is a dormant, heavily glaciated stratovolcano in Russia's Caucasus Mountains.

Elbrus has two principal summits. The eastern summit rises to 5,621 metres, while the western summit is about 21 metres higher. The eastern summit was first recorded as climbed in 1829, and the western summit was reached by a British-led expedition in 1874.

The answer depends on how the continental boundary is drawn. If the Caucasus is assigned to Europe, Elbrus is Europe's highest peak; if Europe is defined to end north of the Caucasus, Mont Blanc is often given that title instead. Mont Blanc, at about 4,810 metres, remains the highest mountain in the Alps and Western Europe.