Under the motto "Research trip to the chalk sea", visitors can expect an exciting insight into the hidden history of Salzgitter's landscape. Since 2007, the Municipal Museum has also been the information center of the "UNESCO - Geopark Harz. Braunschweiger Land. Eastphalia".

After more than 90 million years, the chalk quarry in Salder still contains traces of creatures that inhabited the Cretaceous sea at the end of the Mesozoic era. Most frequently found are the remains of brachiopods (arthropods), ammonites (cephalopods), sea urchins, mussels and sponges - less frequently - but they have also been found here - teeth of sharks and other sea creatures.

This quarry, located in the north-eastern part of the Lichtenberg mountain range, is owned by the "Naturlandschaft" foundation and is maintained and looked after by BUND Salzgitter.

On "Geotope Day", interested visitors can go in search of stone traces of times gone by and make their own small discoveries. An expert guide explains how former habitats have been inscribed in rock and what these natural archives can still tell us today. Dr. Henning Zellmer, head of the Geopark office, will be on site from 11 a.m. to 3 p.m. to answer individual questions.

Registration is not necessary. However, the organizer, the municipal museum, asks participants to bring a helmet, safety goggles and a hammer. While stocks last, these can also be borrowed on site. Sturdy shoes are also required. The tour is only possible in dry weather.

Note: The quarry may only be entered outside the "Geotope" day by prior arrangement.