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Rheintal Valley with Flims-Tamins System

The Tamins Rock Avalanche in the centre of the photo, which occurred more than 9500 years before present, impounded a lake which was later impacted by the Flims Rock Slide in the background, the largest known mass movement in the Alps. Lake water and the valley fill spilled over the deposit of the Tamins Rock Avalanche, transporting rock slide fragments as far as to today's village of Domat in the foreground, where they form so-called toma hills.