dry valley slightly above the karst springs of the rivulet Leinleiter, Franconian Alb. Two karst springs further up, periodically running in high water times - here called “de:Tummler” – may flood the valley ground impressively. Karst and river erosion, dominantly so in Pleistocene times, have deepened and formed the valley. Jurassic rock outcrops frequently along the slopes of the valley.