No mountain range could be said to do that. France is separated from Spain by the Pyrenees, and from Italy by the Alps and from Switzerland by the Juras. France has borders with other European countries where mountain ranges do not form a barrier, like between France and Belgium.
They form the barrier between Spain and France
The Himalayas mountain range blocks the Indian subcontinent from Asia. These mountains are home to some of the world's highest peaks, including Mount Everest, and form a natural barrier between the Indian subcontinent and the rest of Asia.
The Himalayas are located northeast of the Indus Valley civilization. These mountains form a natural barrier between the Indian subcontinent and the Tibetan Plateau.
The Himalayas form a natural border between India and China. Spanning five countries, including India and China, the Himalayas are the highest mountain range in the world. They serve as a physical barrier that separates the two countries.
They form the barrier between Spain and France
astrocytes
They are very similar, but barrier beaches form in front of a inlet or harbour, but bars from where the sea and a river meet
Orographic fog is produced when moist air is lifted over a topographic barrier, such as a mountain range. As the air rises, it cools and condenses to form fog on the windward side of the barrier.
serum separators
Nature has provided the Pyrenees Mountains as the boundary between France and Spain.
The Pyrenees form the border between France and Spain.