Discovery of an early medieval pond at Riviere-les-Fosses in Haute-Marne: man in his environment from the 5th to the 7th century

A preventive excavation carried out in 2017 on a wetland at the ``Vau du Guet''in Riviere-les-Fosses in Haute-Marne was the opportunity to collect, thanks to the study of preserved ecofacts (pollen, macroremains and wood), unpublished data on the landscape of a valley between the 5th and the 7th century , AD. The impact of man on his environment has been observed with the transition, during the High Middle Ages, from a wooded environment to a more open space. Archaeological data acquired around the pond allow these changes to be attributed to clearings linked to the establishment of a habitat nearby.