A section of slit trenching is visible as an earthwork lying west of Richborough fort on 1940s RAF vertical aerial photographs [1]. The trench is of castellated form and runs for 150m parallel to the north side of the road leading from the west gate of the fort. It is not visible on recent aerial photographs and appears to have been plough-levelled [2].

This is one of several WWII defensive features recorded around Richborough fort, see Related Monuments.

A transcription of the features recorded from aerial photography exists within a GIS layer held by this HER [3].

<2> Next Perspectives consortium via English Heritage, 2003, 2007, Next Perspective PGA georeferenced aerial photograph data, Tile Ref: PGA_TR3260_2003-08-14 (Graphic material). SWX15711.

<5> Wessex Archaeology, 2009-10, South-East Rapid Coastal Zone Assessment Survey - Aerial Photographic Transcriptions (Digital archive). SWX15705.

<5> Wessex Archaeology, 2011, South East Rapid Coastal Zone Assessment Survey - (SE RCZAS) Phase 1: National Mapping Programme Report (Unpublished document). SKE25955.

<5> Cornwall Council Historic Environment Projects and Gloucestershire County Council, 2011, South East Rapid Coastal Zone Assessment Survey National Mapping Programme Components 1&2: Results of NMP Mapping (Unpublished document). SKE25954.