Rosemary Bank is a seamount approximately 120 kilometres (75 mi) west of Scotland, located in the Rockall Trough, in the northeast Atlantic.
[1] Rosemary Bank hosts a range of important habitats including deep sea sponge aggregations and cold water coral.
Many species of fish, including orange roughy, blue ling, leafscale gulper shark and Portuguese dogfish are also found here.
Around its base lies a thin "moat", where the sea-bottom is up 300 metres (980 ft) lower than the surrounding terrain.
The lowest parts of these area are approximately 2,300 metres (7,500 ft) below sea level.