 Mont Saint-Michel (English: Mount Saint Michael) is a rocky tidal island in Normandy, roughly one kilometre from the north coast of France at the mouth of the Couesnon River near Avranches.
In prehistoric times the bay was covered by the sea, which retreated over multiple glaciations, allowing erosion to shape the coastal landscape over millions of years. Several blocks of granite or granulite emerged in the bay, having resisted the wear and tear of the ocean better than the surrounding rocks. These included Lillemer, the Mont-Dol, Tombelaine and Mont Tombe, later called Mont Saint Michel. |
