After Xining I was off to Tibet. Being that I am trying not to fly in order to leave less of a carbon footprint as well as the rumors of the train ride to Lhasa from Xining was a supposed nice ride I boarded train T23 and prepared to meet up with the other members of my Tibet tour already on the train where they started in Chengdu. The ride is a nice and relatively comfortable ride passing through vast open steppe land, Qinghai Lake, many mountains and wild animals grazing on the land. The line includes the Tanggula Pass, which, at 5,072 m (16,640 feet) above sea level, is the world's highest rail track. The carriages are specially built and have an oxygen supply for each passenger as the sudden change in altitude can seriously effect some people.