Daulat Beg Oldi (also Oldie, DBO) is a historic campsite and current military base located in Ladakh, India on an ancient trade route connecting Ladakh to the Tarim Basin. It is named after Sultan Said Khan (Daulat Beg), who died here on his return journey after the invasion of Ladakh and Kashmir. The Chip Chap River flows just to the south of Daulat Beg Oldi from east to west. Daulat Beg Oldi also has one of the world’s highest airstrips which is one of India’s Advance Landing Ground (ALG), at an altitude of 5,065 meters (16,614 feet).