Berlin in Germany (where it was divided as East Germany and West Germany)
Berlin Wall and The Great Wall of China
A relic boundary is a geological feature that represents a former boundary or edge of a rock layer or geologic formation that has since been altered or eroded over time. It provides clues about the past environment and geologic processes that have shaped the area.
Aral Mountains.......divide Europe and Russia
The boundary between Europe and Asia is a modern example of where two continents meet. This boundary is located along a series of mountain ranges in western Russia, including the Ural Mountains and the Caucasus Mountains.
Aral Mountains.......divide Europe and Russia
The Pyrenees form the border between Spain and France. As both France and Spain are part of Europe, the Pyrenees do not form a part of Europe's boundary. The Urals or Caucasus mountains from part of Europe's boundary, in the east and in the southeast of Europe.
The Arctic Ocean is the northern boundary of Europe.
Eurasia
Asia, Africa, And Europe
Europe and Asia
The Ural mountain range in Russia establishes the boundary between Europe and Asia.
The Rio Grande is primarily considered a natural boundary, as it is a river that forms part of the border between the United States and Mexico. Its course and flow are shaped by natural processes, making it a prominent geographical feature. However, it can also be viewed as a relic boundary due to its historical significance in demarcating territory following treaties and conflicts. Overall, it serves both natural and historical roles in defining the border.