The central highlands of the Southern Black Forest are formed by the Feldberg region ( NHN) in the north and the group of mountains around the Herzogenhorn in the south, both separated by the Feldberg Pass and the deep valley of Trogtal through which the upper Wiese runs. The rocky dome of the Silberberg drops steeply to the north by a good 550 metres forming one of the highest mountain faces in the Feldberg region. To the southeast the mountain is bounded by the upper reaches of the Prägbach. The latter runs parallel to the Wiese, but 400 metres above it, the southeastern mountainside descending only relatively gently. It transitions to the high pastures of the upper Prägbach valley. The forested northern mountainside is divided by cirque-like niches and craggy ridges that are like arêtes in places.