On the left, at the foot of the south faces of Fründenhorn (3368m), Oeschinenhorn (3485m), Blüemisalphorn (3660m) and Wyssi Frau (3647m), the depris-covered part of Kanderfin can be seen. In the rock walls, as a result of erosion, smaller and larger pieces of rock detach themselves and fall onto the glacier. This is how a so-called upper moraine is formed. As long as the ice of a glacier is flowing, the rock pieces are transported downhill by the glacier.