The Kogelsteine at Grafenberg / Eggenburg show the decomposition forms typical for granites ("wool-sack decomposition"). These granit-wool sacks shape the landscapes of the Wald- and Mühlviertel.
The Kogelsteine stand on a protected area on drying lawns.
The meager soil offers many undemanding plants and animals, which are often strictly protected, the only habitat in our area.
These easy walks are fun in particular for pupils and young people and besides millions of years of geologic history become alive with every step and turn.