Low Ancient Mountains Shields zonon of ancient rocks nt have been eroded for a long time and used to be covored the glacier during the Lou Age can be found in the north and northwmatern part of Europe. Because of erosion. these Baltic andiont rocks became low mountains, iorming the Scandinavian Peninsula Theae low mountains are an important source of water for the continent. Steep Young Mountain Ranges Europe niko possesses the structure of steep and complex rocks. These are found in the zone of new mountain ranges in the kouth The Pyrenees, Alps and Carpathians together forme a nearly unbroken band of mountaina stretching form the Atlantie to central Romania. uake the low ancient mountaina in the north and northwest, the young mountain ranges are an important water aource as mont rivere originute from mountains.