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From about 800 to 1931, the Kalkberg was a mining ground for gypsum. Eleven centuries of mining history and the extraordinary geology of this region offered ideal conditions for the creation of a Geopark Schleswig-Holstein. Sponsored by the economic program Zukunftsprogramm Wirtschaft, a geological trail was built. This trail includes the Kalkberg, the lake Kleine Segeberger See, the Kalkberg cave and the Große Segeberger See as well as the sinkhole area of Stipsdorf. Sixteen information boards along the trail give vivid descriptions of the geological peculiarities of this region.
Anyone interested may go exploring on one’s own to learn more about the extraordinary geology of the area.
Right on the side of the Kalkberg, in David-Kropff-Weg, you’ll find the most conspicuous feature of the trail: a „geological window“, consisting of a 34 meters long row of wire baskets, called gabions, which are filled with types of rock characteristic for Schleswig-Holstein. Carefully layered, the rocks are meant to show a cross-section of ten kilometers of the Segeberg salt dome and the Kalkberg. There is also a practical function to the gabions as the row of them plus steel nets embedded in the hill serve as a protective wall against rocks falling downhill.
For more information and a survey map see our leaflet (sorry, in German only).