Monument record MBC48544 - Cropmarks of a subrectangular enclosure and possible field boundaries, north west of Hewdon Farm, Haddenham

A subrectangular enclosure and linear ditches of uncertain date are visible on historic aerial photographs and remote sensing data as extant cropmarks and were mapped as part of the Aylesbury Vale Aerial Investigation and Mapping project (EBC18604). Located approximately 680 m north west of Hewdon Farm, Haddenham, and centred at SP 75632 09968. A subrectangular enclosure, measuring approximately 31x23m at its largest is visible as a cropmark on aerial photographs. Close to it are two linear, diverging ditches which may have been part of a field system that was contemporary with the enclosure or a later field system. The aerial photographs show other cropmarks which may be anthropogenic in origin or they may be part of the underlying natural geology which shows as other periglacial cropmarks within the same field. Ridge and furrow was mapped on the same location from a 1946 aerial photograph but it is not so clear by 1947, suggesting that the area was ploughed level soon after 1946. Within the Aylesbury Vale project area cropmarks are unusual but where they were mapped it is often where overlying medieval earthworks of ridge and furrow were ploughed level by the 1940s. Lidar visualisations show very subtle earthworks of ridge and furrow earthworks over part of the area, but no trace of the cropmarks is visible as earthworks. Other aerial photographs on Google Earth show no cropmarks of the enclosure even though land use is arable; these features do not show as grassmarks or soilmarks. (1-5)