Karachukar Valley or Chalachigu Valley () is a valley in Taxkorgan Tajik Autonomous County, Xinjiang, China. It contains the basin of the Karachukar River, a tributary of the Tashkurgan River, and is regarded as part of Taghdumbash Pamir. The valley borders Afghanistan (Wakhan Corridor or Little Pamir) to the west and northwest, Tajikistan to the north, and Pakistan (Gojal or upper Hunza) to the south. The name of the valley is from Kyrgyz, meaning "black cave". The valley is part of the Taxkorgan Nature Reserve. The protected Marco Polo sheep is only found around this area. The region is often referred to by the Chinese as the Chinese portion of the Wakhan Corridor. There is an ethnic Kyrgyz village called Bayik ( or ). The entire Chalachigu Valley is closed to visitors. However, local residents and herders from the area are permitted access. In March 2017, CCTV-7's Documentary for Military program produced a mini-series covering the numerous border outposts in Chalachigu Valley. Mountain Passes The valley was a significant thoroughfare of the Silk Road during ancient times. Around the valley are numerous passes connecting to other countries: Tajikistan - Beyik Pass Afghanistan - Wakhjir Pass, Tegermansu Pass Pakistan - Kilik Pass, Mintaka Pass Of the above passes, it is believed that the famous Chinese Buddhist pilgrim Xuanzang traveled through Wakhjir Pass on his return trip back to China around 649 AD. Some Chinese historians argue that he also used Beyik Pass on his way to India. See also Afghanistan–China border China–Pakistan border China–Tajikistan border Dafdar Notes References Sources External links Kalachukur river basin, OpenStreetMap, retrieved 27 May 2022. Valleys of Xinjiang Tashkurgan Tajik Autonomous County