Lüen was a municipality of the district of Plessur in the canton of Graubünden in Switzerland.
On 1 January 2013, the former municipalities of Lüen, Calfreisen, Castiel, Langwies, Molinis, Peist and St. Peter-Pagig merged into the municipality of Arosa.
Other websites
Media related to Lüen at Wikimedia Commons