is mount lamlam the tallest mountain?
Guam's Mount Lamlam technically world's tallest mountain, though most of it is underwater. The view of northern Guam from Mount Lamlam on Aug. 16. ... Mount Lamlam on Guam — just 1,332 feet above sea level — is another 36,070 feet from the bottom of the Marianas Trench, roughly 200 miles below.