After the Second World War Silesia was acquired by Poland and the cross-border traffic was abolished.
Following an exchange of border territories between Czechoslovakia and Poland, the Bohemian part was extended to Harrachov, that became a new terminal station.
Following a one-day celebration on the 100th anniversary in 2002, cross border traffic was restored on 2 July 2010.
In winter, the morning trains are packed with cross country skiers who take advantage of the gained elevation difference and continue from Kořenov to either Jablonec nad Nisou or Liberec via Jizerka or cross the border to make a trip to Orle.
As both the express trains from Prague and Dresden terminate in Tanvald, the former plans to abolish the line were dropped.