The valley landscape of Menzenschwand is shaped by the glacial streams of the Feldberg Glacier from several ice ages. The main glacier, which was up to 300 metres thick, carved out trough-shaped valley of the Krunkelbach that starts at the large cwm west of the Herzogenhorn. The Alb valley to the south joins the Krunkelbach valley at a small valley step about 20 metres high. The Alb has a gorge there with small waterfalls, one of them manmade. A little higher up, a prominent end moraine embankment crosses the valley. The narrow water gap of the stream, the Menzenschwand splash dam reservoir (Menzenschwander Kluse), was previously used to store water for log rafting. The basin-shaped mouth area is a sedimented, former lake. Numerous roches moutonnée characterise the meadows of the lower slopes.