Imray Charts C1 Thames Estuary-Tilbury To Orfordness
IMR C1 Thames Estuary-Tilbury To Orfordness Scale: 1:120 000 WGS84 Imray On this 2018 edition the latest depth surveys have been applied. Minor changes to the Sunk TSS are included as is the latest information on windfarms. The chart specification has been improved to show coloured light flashes. There has been general updating throughout.