What is "plessur"

Plessur may refer to:

• Plessur (district), an administrative district in the canton of Graubünden, Switzerland
• Plessur Range, a mountain range of the Alps
• Plessur (river), a river in the canton of Graubünden, which discharges into the Rhine

The Plessur is a river, long, and a right tributary of the Rhine running through the Swiss canton of Graubünden. Its river is near Arosa in the Plessur Range. It then flows through the Schanfigg valley before emptying into the Rhine at Chur.

The Langwieser Viaduct, an early reinforced concrete railway bridge constructed in 1914, spans the Plessur near Langwies.

Its main tributaries include the Rabiosa, the Welschtobelbach, Sapünerbach and Fondeierbach.