Arosa 阿罗萨
Arosa is a town and a municipality in the district of Plessur in the canton of Graubünden in Switzerland. It is both a summer and a winter tourist resort.
On 1 January 2013, the former municipalities of Calfreisen, Castiel, Langwies, Lüen, Molinis, Peist and St. Peter-Pagig merged into the municipality of Arosa.