Eastern Sinkiang Province includes the eastern end of the Tian(1) Mountains, with crests over 4000 meters, and the Bogda Range, whose chief peak with the same name tops 5000 meters. North of them is the eastern end of the Gurbantuggut Desert of Dzungaria. Between them and to their southeast is the Turban or Durban Basin, which drops below sea level. To its east is the Hami Basin, with oases along its north side.