Overton Down Experimental Earthwork (often referred to simply as Overton Down) is a long-term project in experimental archaeology in Wiltshire, England.
Since then, periodic examinations of the site have been made, providing valuable insights into taphonomy.
[4] Early in the project's history, the complexity of stratification of degraded ditch walls and their asymmetrical character was noted and examined.
[5] The excavation after thirty-two years provided information on decay rates and patterns of deposited objects, which are of use to forensic scientists.
[6] Nonintrusive examination of the ditch has indicated that in this particular environment (exposed chalky hill), after about ten years the general appearance no longer makes rapid changes in appearance and can be considered relatively stable.