Topographical relief is the way the land in a country looks. In Spain, the topographical relief is made up of lots of high mountains, rolling hills, and some flat plains. The big mountain range is called the Pyrenees and it stretches along the border of France and Spain. The biggest mountain in Spain is called Mount Teide and it's on the Canary Islands. There are also other mountain ranges, like the Sierra Nevada and Sierra de Gredos, that go through different parts of the country. There are also some flat plains in Spain, like the Ebro Valley and the Tagus Valley, in the east and the Guadalquivir Valley in the south.