Lago di Lei

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Lago di Lei
Lago di Lei as seen from Piz Grisch.jpg
Lago di Lei is located in Lombardy
Lago di Lei
Lago di Lei
Karte Lago di Lei.png
LocationLombardy (IT), Grisons (CH)
Coordinates46°28′59″N 9°27′18″E / 46.483°N 9.455°E / 46.483; 9.455Coordinates: 46°28′59″N 9°27′18″E / 46.483°N 9.455°E / 46.483; 9.455
Typehydroelectric reservoir
Primary outflowsReno di Lei
Catchment area46.5 km2 (18.0 sq mi)
Basin countriesItaly, Switzerland
Max. length7.7 km (4.8 mi)
Surface area4.12 km2 (1.59 sq mi)
Max. depth133 m (436 ft)
Water volume197 million cubic metres (160,000 acre⋅ft)
Surface elevation1,931 m (6,335 ft)

Lago di Lei is a reservoir in the Valle di Lei, powering the Hinterrhein storage power stations. The reservoir is almost entirely in Italy, but the barrage was built on territory later[when?] assigned to Switzerland (municipality of Innerferrera, Grisons), while an equivalent[how?] territory north of the lake was assigned to Italy.[1] The dam is operated by Kraftwerke Hinterrhein. The waters of the lake are the only waters in Italian territory that drain to the North Sea, being part of the Rhine's drainage basin. Other waters of Italy that do not flow to the Mediterranean Sea are found in the valley of Livigno, valley of Sexten, Puster Valley east of Innichen, and most of the waters of the municipality of Tarvisio east of Sella Nevea: all these waters flow to the Black Sea.

See also[edit]


  1. ^ "Convenzione tra la Confederazione Svizzera e la Repubblica Italiana concernente una modificazione di confine nella Valle di Lei" (PDF) (in Italian). Retrieved 21 May 2014.

External links[edit]