Air Photograph Interpretation by C. Dyer of Orsett Causewayed Enclosure, Orsett, Thurrock, 1994 - EEX63109

A level 3, 1:2500 scale, photogrammetric survey was carried out by RCHME Air Photography Unit in the vicinity of the Orsett causewayed enclosure, TQ 65158055. The survey was undertaken in September 1994 as part of the Industry and Enclosure in the Neolithic Project, which was set up by the Cambridge field office of RCHME. The main objective of the project was to produce an accurate 1:2500 plan of all plough-levelled archaeological features in the same modern field as the causewayed enclosure. The metrical accuracy of the finished plan was +/- 2.5 metres. This was achieved using the AERIAL software, published by the University of Bradford. Field control was derived from current edition OS 1:2500 plans. An accompanying report detailing photographs used, site history and location and a full description of the features plotted was produced as well as an inked interim plan. As a result of this survey, one NMR Monument record was updated (TQ 68 SE 21) and five were created.