The southern limit of a previously identified medieval metalworking site was found in 1998 prior to Channel Tunnel Rail Link construction works. The area under investigation was located to the north of the existing London to Folkestone railway. Cut archaeological features were identified and htese have been interpreted as a series of pits, and a large ditch. The ditch is believed to be the continuation of a ditch observed in an area previously under excavation, and is thought to represent the southern boundary to this site (a medieval metalworking site). Although no direct evidence for metalworking was evident the presence of the identified features suggests that the original limits of the medieval metalworking site continued to the east into the study area.