Here you can see a large crater or bowl-shaped form in which moorland has developed. The rounded bowl is almost entirely closed. To the east of the Lake Zollnersee Hut, the brook draining the moorland has carved its way deep into a ridge of bedrock made from hard quartz. The crater-like form, like many others in the Zollner region, developed during the last Ice Age when the glacier carved out the rock below. However, it is not just bedrock which borders this crater. At this stopping point, the terrain flattens out to form a striking terrace, which drops off steeply into the crater after a few metres. This terrace developed during the last Ice Age when the brooks running from the Kleiner Trieb deposited their debris at the edge of the melting glacier. After the ice had melted, a terrace-shaped terrain was left behind. This is a frequent landscape feature in the Gailtal valley and is known as a kame terrace.