Jiaohe or Yarkhoto or Yarghul is a ruined city in the Yarnaz Valley, 10 km west of the city of Turpan in Xinjiang Uyghur Autonomous Region, C…Jiaohe or Yarkhoto or Yarghul is a ruined city in the Yarnaz Valley, 10 km west of the city of Turpan in Xinjiang Uyghur Autonomous Region, China. It was the capital of the Tocharian kingdom of Jushi. It is a natural fortress located atop a steep cliff on a leaf-shaped plateau between two deep river valleys, and was an important stop along the Silk Road.