The seamounts range from 5,220 to 8,796 feet high and reign over a mysterious submerged world that is largely unmapped, ... called guyots, have large, flat summits,” NOAA says.

The seamounts range from 5,220 to 8,796 feet high and reign over a mysterious submerged world that is largely unmapped, ... called guyots, have large, flat summits,” NOAA says.

Seamounts are submerged mountains largely believed to be “remnants of extinct volcanoes, ... called guyots, have large, flat summits,” NOAA says.

The seamounts range from 5,220 to 8,796 feet high and reign over a mysterious submerged world that is largely unmapped, ... called guyots, have large, flat summits,” NOAA says.

Seamounts are submerged mountains largely believed to be “remnants of extinct volcanoes, ... called guyots, have large, flat summits,” NOAA says.

Seamounts are submerged mountains largely believed to be “remnants of extinct volcanoes, ... called guyots, have large, flat summits,” NOAA says.

Seamounts are submerged mountains largely believed to be “remnants of extinct volcanoes, ... called guyots, have large, flat summits,” NOAA says.

The seamounts range from 5,220 to 8,796 feet high and reign over a mysterious submerged world that is largely unmapped, ... called guyots, have large, flat summits,” NOAA says.