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China Railway Lanzhou Group, officially abbreviated as CR Lanzhou or CR-Lanzhou, formerly, Lanzhou Railway Administration is a subsidiaries company under the jurisdiction of the China Railway (formerly the Ministry of Railway).
Its origin can be traced back to 1 March 1956 when the Lanzhou Railway Bureau was established. The railway administration was reorganized as a company in November 2017.
It supervises the railway network within eastern Gansu, Ningxia, and western Inner Mongolia. In 2015 it operated 8,543 km (5,308 mi) of railways, including 6,569 km (4,082 mi) of mainline track.