Gannan Tibetan Autonomous Prefecture
In the early design plan, the Chenglan Railway will pass through Minshan Mountain after Chuanzhusi Station , enter Gansu, cross the Bailong River , and connect with the Lanzhou-Chongqing Railway at Hadapu Station , and share the same line with the Lanzhou-Chongqing Railway to the end of Lanzhou East Station. . In subsequent adjustments, the north of Huangshengguan Station was changed to an integrated design with Chengxi Railway and no longer docked with Lanyu Railway. The new line will extend from Huangshengguan Station to the northwest and enter Gannan Tibetan Autonomous Prefecture via Zoige County. It will connect with the Lanhe Railway after the upgraded design standards in Hezuo City . It will enter Lanzhou via Gannan Prefecture and Linxia Prefecture , and will be in Xiahe County , Gannan Prefecture. Tanggaang Township is connected to Xining [6] , forming the main channel of Chengxi Railway.