Spain is in Europe, so there is no mountain range that divides Spain from Europe. What you are referring to is the Pyrenees Mountains, which forms much of Spain's border with France. As Spain is in the southeast of Europe, it could be looked upon as a boundary between Spain and most of the rest of Europe.
Europe
Europe
The Pyrenees separate both Spain and Portugal from the rest of Europe.
Europe
Europe
There is no Pyrenees Desert. There are, however, the Pyrenees Mountains. The Pyrenees is a range of mountains in southwest Europe that forms a natural border between France and Spain.
Spain is separated from Europe by the Pyrenees Mountains.
There are lots of mountain ranges in Europe, like the Alps or the Pyrenees.
Nothing separates a mountain range from land, the mountain range itself is what separates. For example, the Pyrenees separate France, Spain, and Andorra from each other as it is the border. However, nothing separates the Pyrenees from the rest of Europe.
Europe
They are mountain ranges in Europe.