York Historic Environment Record

archaeological evaluation. At considerable depth, c.2.90m AOD, deposits which confirmed occupation in the Anglian period and suggest structural activity in the Anglo-Scandinavian period were encountered. In the medieval period the whole site appears to have been flooded by the damming of the River Foss to supply water to the castle moat in 1069. The site was thus encompassed by the King's Fishpool, and allowed to silt up in the 14th and 15th centuries. Post-medieval deposits were primarily related to land reclamation activities of the Foss Navigation Company which was formed in 1793 to make and maintain a navigable communication. Modern deposits on the site show that it was used extensively for dumping ash and cinder waste which may have derived from industrial processes carried out close by, prior to its most recent use as a warehouse and car showroom.