Vorderrhein
Script error: No such module "Infobox".Script error: No such module "Check for unknown parameters". The Vorderrhein (Script error: No such module "IPA".; Template:Langx; Template:Langx; Template:Langx; Template:Langx), or Anterior Rhine, is the left of the two initial tributaries of the Rhine (the other being the Hinterrhein). It is longer than the Hinterrhein, but has a lower discharge than the latter at their confluence, which marks the beginning of the Alpine Rhine section.
The Vorderrhein and nearly all of its tributaries are located in the Swiss canton of Grisons (Script error: No such module "Lang".), with the largest communities along the river being Disentis and Ilanz. One of its upper tributaries, the Rein da Medel, rises in the canton of Ticino.
Vorderrhein was also the name of a judicial district that was created in 1851 with the reorganization of the judiciary of Graubünden. In 2001, it was annexed by the District Surselva.
Geography
Course
The Vorderrhein flows mostly in an east-northeast direction, through the Surselva, a large longitudinal valley. Its north side is steep, with short valleys; the southern side, however, is divided by some long valleys (similarly to the situation in the canton of Valais further west). Consequently, its main tributaries, the Rein da Sumvitg, the Glenner and the Rabiusa, all come from the south, or right side of the Vorderrhein. In its lower course, the Vorderrhein flows through the Flims Rockslide, giving rise to the canyon country of the Ruinaulta. Near Reichenau, it joins the Hinterrhein to form the Alpine Rhine, which continues to Lake Constance (Script error: No such module "Lang".).
The catchment area of the Vorderrhein, measuring Script error: No such module "convert"., is located predominantly in the canton of Grisons (Script error: No such module "Lang".), Switzerland. The Vorderrhein is about Script error: No such module "convert". long, thus more than 5% longer than the Hinterrhein (each measured to the farthest source). The Vorderrhein, however, has an average water flow of Script error: No such module "convert"., which is less than the flow of the Hinterrhein (Script error: No such module "convert".).[1]
According to the Atlas of Switzerland of the Swiss Federal Office of Topography,[2] the source of the Vorderrhein—and thus of the Rhine—is located north of the Rein da Tuma and Lake Toma.
Headwaters
Some of the tributaries of the Vorderrhein are almost as long as the main branch. In downstream order, they are (measuring their length from their respective sources to the confluence with the Hinterrhein at Reichenau, near Bonaduz):
- Two unnamed streams originating in the Puozas and Milez areas near the Oberalppass
- Rein da Tuma, including the Lai da Tuma and the main head of the lake, about Script error: No such module "convert".
- The Aua da Val from the Val valley (Template:Cvt)
- Rein da Maighels (75 km) (tributary of the Rein da Curnera)
- Rein da Curnera (about Template:Cvt)
- Rein da Nalps (about Template:Cvt)
- Rein da Medel; the upper reaches in the canton of Ticino are known as the Script error: No such module "Lang"., and also as the Froda (about Template:Cvt)
Thus, the longer arms are not the source at Oberalppass, but further southeast. The longest headwater of the Vorderrhein (and thus the Rhine as a whole; see sources of the Rhine), is the Reno di Medel, which rises on the border of the municipality Quinto in Ticino. In the uppermost part of its course, it runs in the Val Cadlimo, south of the geomorphological main Alpine ridge, west of the Lukmanier Pass.
The high point of the Vorderrhein's drainage basin is the Piz Russein of the Tödi massif of the Glarus Alps at Script error: No such module "convert". above sea level. It starts with the creek Aua da Russein (Template:Lit).[3]
Witenwasserenstock mountain is the triple divide of the drainage basins between the rivers Rhine, Rhône and Po.
Tourism
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Thanks to its attractive scenery and some interesting passages, the Vorderrhein is a popular river for paddling and rafting, especially the section between Ilanz and Versam.
Along entire length of the Vorderrhein there are two narrow-gauge railway lines. The Reichenau-Tamins–Disentis/Mustér railway is served by the Rhätische Bahn between Chur and Disentis/Mustér. From Disentis, the Furka-Oberalp line, served by the Matterhorn Gotthard Bahn, runs over the Oberalp Pass to Andermatt (canton of Uri) and onwards to Brig (canton of Valais).
In the Ruinaulta area, the main road runs to the north of the river, and at its highest point, at Flims, it is about Script error: No such module "convert". above the Rhine.
The Senda Sursilvana, a hiking trail, leads from the Oberalp Pass along the Vorderrhein in the direction of Chur.[4]
Gallery
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The Vorderrhein at Schluein
See also
Footnotes
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External links
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