Iron Age pottery and iron slag have been found on the site.
One find which evidenced that metalworking was done at this site was the discovery of iron slag.
Complimenting this a large amount of iron slag and cinder were discovered at the Marina site.
The agger of the road, whose foundations include iron slag, can be seen at Roman Road car park.
Road surfaces in the iron-producing areas of the Weald were made from iron slag.
Near to the Alfoldean station the metalling was constructed from iron slag in a solid 30 cm thick mass.
The iron slag has been dated to around 210 BC.
However in the field this can often be confused for iron slag without metallographic analysis.
Along with megalithic period pottery, iron slag was also part of the finds.
Pieces of iron slag have been found in the area, which was once semi-enclosed.