recaptured it and finally released them, after a visit by a diplomat from the German embassy in London. Location According to the Admiralty chart the fort's location is at 51°53.71′N 1°28.83′E. The structure is marked by east and west cardinal buoys. Other references (taken from land-based maps) are Ordnance Survey , and on OpenStreetMap within 200 meters of the chart location . References Fort Roughs Forts in Essex Roughs Fort Roughs Fort Roughs Fort Roughs Coastal Essex Sea forts World War II sites in England