The Rein da Curnera (in German: Curnerarhein) is a right tributary of the Anterior Rhine and one of the main tributaries of the Rhine (see Sources of the Rhine). It is fed from multiple sources and glaciers at the southern end of the valley. The river is about 8 kilometres (5 mi) long and flows north through the Val Curnera. Approximately in the middle of its route, a dam was constructed by Kraftwerke Vorderrhein AG (the local hydropower company), which formed Lai da Curnera. At this point, the Rein da Curnera takes up a left tributary, the Rein da Maighels.

Rein da Curnera
Reservoir Lai da Curnera with its inflow Rein da Curnera
Location
Country	Switzerland
Canton	Graubünden
Physical characteristics
Source
• location	Multiple springs and glaciers at the Southern end of the valley,
• coordinates	46°34′54″N 8°42′55″E / 46.58167°N 8.71528°E / 46.58167; 8.71528
Mouth
• location	Confluence with Anterior Rhine near Tschamut in the Tujetsch valley,
• coordinates	46°39′9″N 8°42′43″E / 46.65250°N 8.71194°E / 46.65250; 8.71194
Length	8 km (5.0 mi)
Basin features
Progression	Vorderrhein→ Rhine→ North Sea
Tributaries
• left	Rein da Maighels
Waterbodies	Lai da Curnera

The Rein da Curnera flows into the Anterior Rhine near Tschamut in the Tujetsch valley.