Garnitzen Gorge/Garnitzenklamm, Carinthia, Austria

Garnitzen Gorge (German: Garnitzenklamm) is located in Carinthia, Austria. It is formed by ongoing erosive processes. The slight acidity of rain and the water is enough to dissolve the predominantly limestone and shale walls because these are relatively soft stone types. Additionally, the roots of trees and vegetation wedge large chunks of rock loose. A third factor—the nearby plate boundary in the Gail Valley—has the added effect of contorting the stone, causing fissures, allowing for further erosion. The water carries debris as bed load (particles floating in water) down the gorge creating pools in its path and revealing millions of years of stratification (layers of rock). One can think of it as extremely gentle, constant sandblasting.

Link to more photos.