GUAM - Mt. Lamlam in Southern Guam (Highest mtn on Earth below sea level atop the Mariana Trench)

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Comments (4)

fita.sarmiento.rober… on August 30, 2008

Considering how small Guam is, many people who have trekked thru Mt. Lamlam have described how dark, humid and dangerous it can become if you don't know how to navigate in the jungles of Guam. Numerous creeks/rivers run through this mountain and eventually find its way to the ocean. Clouds hovering over the mountain give it different shades throughout the day, making it a treat to watch.

Sambon on November 1, 2010


I would like permission to use this image in an educational textbook for Grade 9 students in Papua New Guinea. Please email me at so we can arrange the details.

fita.sarmiento.rober… on March 8, 2011

I am honored you wanted to use my photo in your textbook over the thousands available in this site. I look forward to seeing the textbook in print. Thank You Sam:o)

fita.sarmiento.rober… on March 13, 2011

Add comparison:

MT. LAMLAM in Guam is 37,828 ft from below sea level

Mauna Kea in Hawaii is 33,838 ft from below sea level

Mount Everest is 29,029 ft from below sea level

Guam sits atop the Mariana Trench, situated between the Philippine Tectonic Plate, which subducts the Pacific Tectonic Plate (Earth's old crust). The Challenger Deep (deepest part of the Mariana Trench has been measured using sonar 3x, (by 3 different scientific expeditions), showing depth ranging between 10,902m-10,916m, making it the undisputed deepest part of the ocean on Earth. These facts gives Mt. Lamlam the distinction of being the highest mountain on Earth below sea level.

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Photo details

  • Uploaded on July 26, 2008
  • © All Rights Reserved
    by fita.sarmiento.rober…
    • Camera: FUJIFILM FinePix S9000
    • Taken on 2007/02/21 16:02:18
    • Exposure: 0.002s (1/640)
    • Focal Length: 14.00mm
    • F/Stop: f/3.600
    • ISO Speed: ISO100
    • Exposure Bias: 0.00 EV
    • No flash