That would be the Mid-Atlantic Ridge.
sea mountain
The large mountain range found on the floor of the Atlantic Ocean is called the Mid-Atlantic Ridge. The Mid-Atlantic Ridge reaches a maximum width of about 860 nautical miles.
It's 3,715m high above sea level and 7,500m above the floor of the Atlantic Ocean.
A seamount is a submerged mountain rising from the ocean floor, while a volcanic island is a mountain formed above sea level by volcanic activity. Seamounts may not breach the surface, while volcanic islands are visible and can support terrestrial life.
The Andes is the longest mountain range in the world above or below sea level. I think the mid-ocean ridge is the longest below sea level...but I'm not sure
The Mid-Atlantic Ridge (MAR) is a mid-ocean ridge, a divergent tectonic plate boundary located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world.. Copy and Pasted, but hope this is what you were looking for. :)
Mid-ocean ridge. An example, is the mid-atlantic ridge.
North Atlantic Oscillation
The coast of Big Island of Hawaii has the steepest region of the Ocean Floor. If measured from sea bottom to mountain peak, it would be taller than Mount Everest. Rising up to Mauna Kea.
A seamount is a mountain rising from the ocean seafloor that does not reach to the water's surface (sea level), and thus is not an island.
Yes, there are mountain ranges on the ocean floor called mid-ocean ridges. These underwater mountain ranges are formed by tectonic plates pulling apart, allowing magma to rise and create new oceanic crust. Examples of mid-ocean ridges include the Mid-Atlantic Ridge and the East Pacific Rise.
The prominent sea floor feature found in the central Atlantic ocean is called the Mid Atlantic Ridge.