Oust-MarestOust-Marest is a commune in the Somme département in Hauts-de-France in northern France.GeographyThe commune is situated on the D1015 road, some southwest of Abbeville, on the banks of the river Bresle, the border with Seine-Maritime.HistoryThe name of Oust-Marest comes from Roman origins. Possibly from a settlement named in honour of Augusta. Archaeologists have found traces of a Gallo-Roman amphitheatre and a temple in the locality.Places of interest A watermill on the river Bresle