From the report (1):

"An archaeological evaluation was undertaken by AOC Archaeology Group between 14th and 17th January 2008 at Horns Cross, Stone, Dartford.... The aim of the evaluation was to assess the impact of the proposed development on any surviving archaeological remains.

The evaluation comprised the machine excavation of six test trenches measuring 2.5m x 2m at base. Natural Pleistocene gravel deposits were identified at between 35.31mOD and 36.27mOD. Sealing the gravels was a layer of homogenous mid greyish brown, sandy clay subsoil, beneath a deposit of dark blackish brown, sandy clay buried topsoil, underlying modern made ground and a levelling layer of demolition rubble.

Within Trench 1 a pit and linear ditch, both dated as late prehistoric from recovered worked flints, were found cutting into the natural Pleistocene gravels."

<1> AOC Archaeology Group, 2008, Horns Cross, Stone, Dartford: An Archaeological Evaluation Report (Unpublished document). SKE13323.