Earthworks of medieval ridge and furrow, to the west of Willow Tree House, Marshchapel. Identified on aerial photographs dated to 1971, examined as part of the Lincolnshire Coastal Grazing Marsh project. {1} The remains are clearly visible as a series of parallel linear earthworks, aligned on a roughly south-west to north-east axis, as seen on LiDAR data for this area. {2}