The Karakash or Black Jade River, also spelled Karakax, is a river in the Xinjiang autonomous region of the People's Republic of China that originates in Aksai Chin. It passes through the historical settlement of Xaidulla and passes by the city of Khotan to flow northeast in the Tarim Basin. It merges with the Yurungkash River, the combined river takin…The Karakash or Black Jade River, also spelled Karakax, is a river in the Xinjiang autonomous region of the People's Republic of China that originates in Aksai Chin. It passes through the historical settlement of Xaidulla and passes by the city of Khotan to flow northeast in the Tarim Basin. It merges with the Yurungkash River, the combined river taking the name Hotan River and flowing into the Tarim River.