由于冰蚀作用造成的三面环山，后壁陡峻的围椅状洼地称为冰斗。出口的山坡方向常有一冰坎，一般发生在雪线附近。如今在冰斗口左侧处还可以看到冰坎残留体。

    A cirque is a bowl shaped semicircle depression caused by glacial erosion. The back of the cirque is high and the sides are lower resembling an armchair. It is always surrounded on three sides by mountains. There is usually a ridge at the exit of the cirque. Normally, it happens near the snow line. Today evidence of the ridge can still be seen at the left side in front of the cirque exit.