Abyssal Hill

Small, topographically well-defined submarine hill that may rise from several metres to several hundred metres above the abyssal seafloor, in water 3,000 to 6,000 m (10,000 to 20,000 feet) deep. Typical hills have diameters of several to several hundred metres. Abyssal-hill provinces, areas of abyssal seafloor occupied exclusively by such hills, characteristically occur seaward of the