Les Roches du Val d'Orne

At the Mathias quarry, a geological spectacle takes us back over 500 million years. From top to bottom, a series of geological events unfold on this beautiful face. Only geologists have the keys to translate them: here we discover marine sediments deposited on the root of an ancient, much older mountain, covering an even older one. When several geological histories are superimposed on the same site, we speak of an unconformity. In this case, there are two, and geologists refer to them as the "Laize-la-Ville double unconformity". As a result of this history, this site is a world-renowned geological landmark, known in most of the world's universities.
Open to the public.
If you come to the site by car, park in the parking lot opposite the town hall, which is a 500 m walk from the site.