Earthworks remains of medieval ridge and furrow to the east of Grimoldby, identified on aerial photography by the National Mapping Programme. {1} Extant ridge and furrow was visible on the Bing Maps aerial photography coverage, in the area north of Pick Hill Lane. The earthworks previously identified to the south of the road appeared to have been levelled through modern arable cultivation, although a strip may survive along the side of Middlesykes Lane. {2}