The London Stone is a carved stone pillar, positioned beside the River Thames next to the Lammas Recreation Ground. The first stone was erected by the Corporation of the City of London in 1280 or 1285, following its purchase of the river rights from Richard I. Originally positioned close to the Market Square, it marked the western boundary of the corporation's jurisdiction and is thought to have indicated the tidal limit of the Thames in medieval times. It was moved to its current position in the 17th or 18th century and was replaced by a replica in 1986. The original stone is now held by the Spelthorne Museum at Staines Library.
