The geographical features of the National Park consists of high mountains, including Doi Inthanon, which is the highest mountaintop in Thailand (2,565 meters above the sea level), followed by Doi Huamodluang (2,330 meters above the sea level). Doi Inthanon is the source of many rivers including Mae Klang, Mae Pakong, Mae Pon, Mae Hoi, Mae Ya, Mae Chaem, Mae Khan, and being part of Ping River, where the Bhumipol Dam is situated and generating the electrical power.