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The Avers Rhine ( rm, Ragn da Ferrera, german: Averser Rhein) is a
tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drai ...
of the Hinterrhein/Rein Posteriur in the
Swiss Swiss may refer to: * the adjectival form of Switzerland *Swiss people Places * Swiss, Missouri *Swiss, North Carolina * Swiss, West Virginia *Swiss, Wisconsin Other uses * Swiss-system tournament, in various games and sports * Swiss Internation ...
canton of Graubünden.


Course

It rises in Avers at the confluence of the Bergalgabach with the slightly smaller Jufer Rhine. The Jufer Rhine rises in, and is named after,
Juf Juf () is a village in the municipality of Avers in the canton of Grisons, Switzerland. At above sea level, it is historically the highest village with permanent residents in Europe, as well as one of its coldest localities. As of 2016, Juf had ...
, the highest permanent settlement in Europe, near the border with Albula district. From this confluence, the Avers Rhine descends through a deep gorge, spanned by the high Lezi Bridge. When it reaches the valley floor, it meets the slightly smaller Madrish Rhine. After a few kilometers, it is joined from the left by the ''Reno di Lei'', which flows almost entirely on
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...
soil. The ''Lago di Lei'' reservoir is also on Italian soil, except for the dam which creates it, which was erected on Swiss territory. The Avers Rhine continues its way through the Val Ferrera valley, which contains two populated places. The upper village is Innerferrera ( rm, Calantgil), where the river is dammed, forming the Innerferrera reservoir since 1961. Below
Ausserferrera Ausserferrera ( rm, Farera) is a village in Hinterrhein District in the Swiss Canton of Graubünden. An independent municipality before, it merged on January 1, 2008 with neighboring Innerferrera to form the municipality of Ferrera. History Ausser ...
( rm, Farera), the
glacial valley U-shaped valleys, also called trough valleys or glacial troughs, are formed by the process of glaciation. They are characteristic of mountain glaciation in particular. They have a characteristic U shape in cross-section, with steep, straight s ...
is flanked by steep rocky slopes. The Avers Rhine then flows into the Hinterrhein in the Rofla Gorge above Andeer. The road in the Ferrera valley is a cul de sac.


Tributaries


Left tributaries

* Bergalgabach (largest headwater of the Avers Rhine) * Madrish Rhine ( rm, Ägua da Madris) * Reno di Lei * Ual da Niemet Landeskarte der Schweiz 1:25000


Right tributaries

* Jufer Rhine * Maleggabach * Ava da Starlera * Ava da Mulegn * Aua Granda


Footnotes

Rivers of Switzerland Rivers of Graubünden Avers {{Switzerland-river-stub