The Royal Thai Survey Department (Thai: กรมแผนที่ทหาร) is a Special Services Group of Headquarters, Royal Thai Armed Forces (กองบัญชาการกองทัพไทย) tasked with conducting land and aerial survey, geodesy and geophysics works in Thailand. The headquarters of the Survey Department are located on Kanlayan Maitri Road in the Phra Borom Maha Ratchawang Subdistrict of Phra Nakhon District, Bangkok, and the current Department Director is Lieutenant General Noppadon Chotisiri. Modern map surveying in Thailand began in 1875 during the reign of King Chulalongkorn (Rama V) with the establishment of a Mapping Division under the direction of British expatriate Henry Alabaster to lay out the map for telegraphic activities linking Bangkok to Phra Tabong (Battambang) and also to map around the Thai Gulf. More information...
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