Lamel Hill, once known as Heslington Hill, is located to the south-east of the centre of York. It is the location of The Retreat and of the northern part of Walmgate Stray. It is best-known for having been the location of a Parliamentary gun-emplacement aimed at Walmgate Bar in the City Walls during the Siege of York in 1644. It was the site of York's first formal archaeological excavation in 1849, when traces of an Anglo-Saxon cemetery were found. Lamel Hill is part of a conservation area which was designated in 1975.