Unofficially the highest peak of Bangladesh is Saka Haphong at Mowdok range. on the border with Myanmar. In February 2006 a GPS reading of 1,064 meters was recorded on this summit by English adventurer Ginge Fullen. The location he recorded, , accurately matches the location given by Russian topographic mapping and SRTM data, although these sources show its height to be slightly lower, at 1,052 meters. However, SRTM data has been demonstrated to have about 5-9m vertical accuracy, while most tracking grade handheld GPS receivers also have several meters of vertical inaccuracy. Only accurate DGPS or RTK-GPS survey, or airborne LIDAR/photogrammetric survey can yield more accurate result. Recently two trekking clubs counted the height of Saka Haphong as 3,488 and 3,461 feet, respectively. Any of these two figure would make it the highest mountain in Bangladesh exceeding the height of Keokaradong, which is 3,172 feet high.