Marmorera
| Marmorera | |
|---|---|
| Ruins of Marmels Castle, located near Marmorrera | |
| Location of Marmorera | |
| Coordinates: 46°30′N 9°39′E / 46.500°N 9.650°E | |
| Country | Switzerland | 
| Canton | Graubünden | 
| District | Albula | 
| Area | |
|  • Total | 18.90 km2 (7.30 sq mi) | 
| Elevation | 1,720 m (5,640 ft) | 
| Population  (2006) | |
|  • Total | 48 | 
| • Density | 2.5/km2 (6.6/sq mi) | 
| Time zone | UTC+01:00 (Central European Time) | 
| • Summer (DST) | UTC+02:00 (Central European Summer Time) | 
| Postal code(s) | 7456 | 
| SFOS number | 3533 | 
| ISO 3166 code | CH-GR | 
| Surrounded by | Bever, Bivio, Mulegns, Sur | 
| Website | surses SFSO statistics | 
Marmorera (German: Marmels) is a village and former municipality in the Sursés in the district of Albula in the canton of Graubünden in Switzerland. On 1 January 2016 the former municipalities of Bivio, Cunter, Marmorera, Mulegns, Riom-Parsonz, Salouf, Savognin, Sur and Tinizong-Rona merged to form the new municipality of Surses.
Until the end of the 19th century, its population was almost exclusively Romansh-speaking. This figure has however since been in decline, with its 2000 census reporting that 57% of the population now declared German as a first language.
The old village was destroyed and flooded when the Marmorera dam was constructed. The current village was built above Lai da Marmorera.