The striking rock debris in the stream bed of the Garnitzenklamm gorge is endlessly fascinating and is the result of various natural forces. The colours of the dominating limestones and schists are multiplied by those rocks which are exposed in the upper part of the gorge and were transported from the rear section of the gorge by the Garnitzen brook to this point.
There, the outcrops comprise different rocks in comparison to those occurring along the Geotrail. These are red sandstones, colourful limestone conglomerates, highly porous ochre-coloured calcareous tuffs, almost white dolomites and various different coloured limestones and schists. Many of these rocks contain fossilised sea creatures. All the different types can be studied at this stopping point. Most of the stones were rounded during transportation. There are, however, some more angular examples. These angular rocks have travelled less far and are derived from the adjacent cliff walls.