https://www.stclement-patrimoine.org/patrimoine_st-clement.htm
On the southern slope of the hill of Saint-Clément, 750 m southwest of the village, stand two menhirs. The first is on the northern edge of a dead-end road, about 175 m from the road from Saint-Clément to Joncy, at the place called «Les Terres Bobillot». The second is located 30 m upstream. Like the other megaliths erected in the Neolithic (about 3500 BC), the two menhirs are on a break of slope, near an old track whose route was taken by a Gallo-Roman way (250 m to the south). The first menhir, with a height of 4.90 m, a volume of 2 to 2.5 m3 and a weight that can be estimated at 5 or 6 tonnes, stands near a source. It has no engravings. This megalith had a singular destiny. He was lying half buried in the ground when, in 1957, he was taken away by a private to decorate his property about fifteen kilometres from Saint-Clément. Thanks to the action of the Association de sauvegarde et de mise en valeur de Saint-Clément-sur-Guye, which revived the efforts of the municipality and the entire population, it was reinstated on August 20, 1979. On August 26, a celebration celebrated the event. The return of the menhir revived the feeling of village community. The second menhir was discovered in 1988 during drainage work. Broken in two, it was repaired in Buxy, before being re-implanted in 1989. It is a relatively small stone (2.30 m high, but certainly truncated) but very interesting thanks to its engravings. One finds in particular serpentiform representations on one side, which one finds in Brittany, in Italy, as well as other objects as in Switzerland or in the South of France. On the other side, one can observe a kind of cup. The two menhirs are in sandstone, but from different origins, which have not been determined.