31°59′00″N 65°11′00″W / 31.983333°N 65.183333°W
The Plantagenet Bank is an under-sea feature in the Atlantic Ocean about 25 miles (40 kilometres) southwest of Bermuda.[1][2][3]
The site was the home of the Argus Island research tower until May of 1976.[4] The tower hosted several oceanographic research studies in the area focusing on currents.[5][6]
The bank has significant carbonate deposits.[7] It was studied in the early 1960s for its magnetic deviations which contribute to the lore of the Bermuda Triangle.[3]