Plate 13.1 High-definition multibeam sonar point-cloud image of the 203 m (660 ft) long wreck of HMS Royal Oak
(1939) in Scapa Flow, Orkney. (Courtesy of ADUS and the Department of Salvage and Marine, Ministry of Defence)Plate 13.2 Surface rendered multibeam sonar image of rock gullies off Moor Sand, UK, containing bronze-age and
seventeenth-century material. The 700 m (2275 ft)long area runs WSW to ENE and is 260 m (845 ft) at its widest.
(Courtesy of ADUS, University of St Andrews)9781405175913_7_Plates 5/7/08 6:27 PM Page 9