The Museum presents the geology, paleontology and archaeology of Mormoiron. The whole history of gypsum, ochre, siliceous sands, clay and gravel pits of Mormoiron is evoked. Many photographs and videos explain the geological phenomena of these transformations. The exhibits (fossils, flint, pottery), from the Middle Palaeolithic to the Gallo-Roman period, are small wonders, including the casting of a Palaeotherium skeleton (38 million years), a fossil mammal extracted from the quarries of Mormoiron and one of the few found complete to date. The Museum is part of a rich architectural and natural heritage.