The "Grand menhir" (big menhir) of Devens wood is situated in a small clearing, east of the nearby menhirs of Saint-Aubin-Sauges. Constituted by a granite block, it measures approximately 3 meters in height for 1,4 meters in width. The pit dug around the menhir is the result of the excavations undertaken in the 1860s by Doctor Gustave Clément, amateur of antique established at Saint-Aubin. A paving stone of red granite as well as fragments of ceramic and charcoals were discovered during these excavations.
Not far from the big menhir, we can see in the forest the three "Pierres du Guénégou" (Guénégou stones), partially slept menhirs which are at the foot of a hillock, maybe artificial.
Swiss topographic coordinates: