The Ancient Road meanders along glacial landscapes. When the Ice Age came to an end, meltwater drained westward towards the ice-free area. After the ice had retreated, streams and rivers in the area could also run eastward. The Ancient Road emerged along this glacial ridge where there were no rivers for travellers to cross.
Along the Ancient Road there are many natural springs. The largest, located only a few hundred metres apart in Tinnet, are the headsprings of two of Denmark’s mightiest rivers, Skjern Å and Gudenåen, which run in opposite directions to the east and west respectively.