Sources des infos : www.myswitzerland.com/fr-ch/de…
The Rhine Falls are located between Neuhausen am Rheinfall (right bank) and Flurlingen (left bank) in the canton of Schaffhausen in Switzerland. They are classified among the largest waterfalls in Europe. In their current form, they would have formed between 14,000 and 17,000 years ago on the border between a layer of hard limestone and a zone of pebbles. The flow is several hundred cubic meters of water per second plunging to a height of 23 meters by a width of 150 meters.