Harbin–Mudanjiang intercity railway is a high-speed railway in Heilongjiang Province, China, between the cities Harbin and Mudanjiang. It is a Passenger Dedicated Line (PDL), with a design speed of 250 km/h and a total length 293.2 km. Starting in Harbin, it leads east to Acheng, into mountains at Mao'ershan, to Shangzhi, again through the mountains to the southeast, Weihe, Yabuli, Hengdaohezi, Hailin and on to the end at Mudanjiang station. Future proposals for this line could see it extended across the border into Russia and the Russian port city of Vladivostok.