In 2011 Md. Wadud Mohosin Rubel with his three travel fellows, Asif Aminur Rashid, Nagib Meshkat & Abdul Haque have claimed the mountain Dumlong to be the second-highest mountain; on the basis of Garmin GPS they have measured the height of the mountain which is 3314 feet. The location he recorded, 22°02′02.1″N 92°35′36.3″E, accurately matches the location given by Google Earth. Few months after this expedition, travelers of Bangladesh team led by Zaqiul Deep measured this peak which was 3,312 feet. Few months later Fahim hasan of BD Explorer Reached the summit of Dumlong as 3rd team. Surely there is no doubt about the height of Dumlong peak but whether it is the second- or third-highest peak of the country, is not confirmed yet. It is the highest peak of Rangamati hill district and also the one of only three 1000 meters peaks in Bangladesh. In 2014, several teams have summitted Zow Tlang and based on their readings it can be said that Dumlong is the third-highest peak of the country.