However, the photos shown all show the anhydrite heaps and their surroundings, which were piled up by the chemical factory in Dohna (today Fluorchemie still exists) until the 1930s (and occasionally until the 1960s). They have nothing to do with the Kahlbusch. This is located about 500m away and no anhydrite accumulated as a waste product during stone breaking.
However, as mentioned, it is an exciting geological monument because, in addition to its history, fossil deposits were discovered during quarrying, which were also largely destroyed at the same time. Today, particularly on the edge of the cliff, you can see very clearly both the volcanic formation around 300 million years ago and the fossil layers as deposits of the Cretaceous Sea, which are around 93.5 - 94 million years old. The history is well researched in the Dohna Museum. A small plaque at the foot of the Kahlbusch summarizes the geological complex.
As already mentioned, picking is prohibited. However, nothing stands in the way of a nice walk. The Kahlbusch area is designated as a public car park, so you can enjoy a good view of both the edge of the cliff and the surrounding area.