Tomas Pueyo on Twitter: "These southern European mountains are there because of the African and Eurasian tectonic plates colliding. The Northern European Plain is unaffected, but receives the water from the mountains.
![Elevation map of the EU - you can clearly see how mountain ranges make up borders, except in Romania [OS] [OC] [1280x1069px] : r/MapPorn Elevation map of the EU - you can clearly see how mountain ranges make up borders, except in Romania [OS] [OC] [1280x1069px] : r/MapPorn](https://preview.redd.it/ofxhcz5jx1mx.png?auto=webp&s=68936ffd268cb1fa2896c693601562a91ba209db)
Elevation map of the EU - you can clearly see how mountain ranges make up borders, except in Romania [OS] [OC] [1280x1069px] : r/MapPorn
![Map of collection sites of Erebia pronoe in European mountain ranges... | Download Scientific Diagram Map of collection sites of Erebia pronoe in European mountain ranges... | Download Scientific Diagram](https://www.researchgate.net/publication/326018628/figure/fig1/AS:647584435679234@1531407569215/Map-of-collection-sites-of-Erebia-pronoe-in-European-mountain-ranges-and-possible.png)