Rhine - wikipedia Rhine This article is about the river. For other uses, see Rhine ( disambiguation ) and Rhein ( disambiguation ). Rhine ( Rhenus, Rein, Rhein, le Rhin, Rijn ) River The Lorelei rock in Rhineland - Palatinate Name origin : Celtic Rēnos Countries Switzerland, Liechtenstein, Austria, Germany, France, Netherlands Rhine Basin Switzerland, Liechtenstein, Vorarlberg, South and Western Germany, North - Eastern France, Belgium, Netherlands, Val di Lei, Italy Region Central and Western Europe Primary source Vorderrhein / Rein Anteriur - location Tomasee ( Romansh : Lai da Tuma ), Surselva, Graubünden, Switzerland - elevation 2,345 m ( 7,694 ft ) - coordinates 46 ° 37 ′ 57 '' N 8 ° 40 ′ 20 '' E ﻿ / ﻿ 46.63250 ° N 8.67222 ° E ﻿ / 46.63250 ; 8.67222 Secondary source Hinterrhein / Rein Posteriur - location Paradies Glacier, Graubünden, Switzerland Source confluence Reichenau - location Tamins, Graubünden, Switzerland - elevation 585 m ( 1,919 ft ) - coordinates 46 ° 49 ′ 24 '' N 9 ° 24 ′ 27 '' E ﻿ / ﻿ 46.82333 ° N 9.40750 ° E ﻿ / 46.82333 ; 9.40750 Mouth North Sea - location Hoek van Holland, Rotterdam, Netherlands - elevation 0 m ( 0 ft ) - coordinates 51 ° 58 ′ 54 '' N 4 ° 4 ′ 50 '' E ﻿ / ﻿ 51.98167 ° N 4.08056 ° E ﻿ / 51.98167 ; 4.08056 Coordinates : 51 ° 58 ′ 54 '' N 4 ° 4 ′ 50 '' E ﻿ / ﻿ 51.98167 ° N 4.08056 ° E ﻿ / 51.98167 ; 4.08056 Length 1,230 km ( 764 mi ), Basin 185,000 km ( 71,429 sq mi ) Discharge - average 2,900 m / s ( 102,413 cu ft / s ) - max 13,000 m / s ( 459,091 cu ft / s ) - min 800 m / s ( 28,252 cu ft / s ) UNESCO World Heritage Site Name Upper Middle Rhine Valley Year 2002 ( # 26 ) Number 1066 Region Europe and North America Criteria ( ii ) ( iv ) ( v ) Map of the Rhine basin Wikimedia Commons : Rhine The Rhine ( Latin : Rhenus, Romansh : Rein, German : Rhein, French : le Rhin, Dutch : Rijn ) is a European river that begins in the Swiss canton of Graubünden in the southeastern Swiss Alps, forms part of the Swiss - Austrian, Swiss - Liechtenstein, Swiss - German and then the Franco - German border, then flows through the Rhineland and eventually empties into the North Sea in the Netherlands. The largest city on the river Rhine is Cologne, Germany, with a population of more than 1,050,000 people. It is the second - longest river in Central and Western Europe ( after the Danube ), at about 1,230 km ( 760 mi ), with an average discharge of about 2,900 m / s ( 100,000 cu ft / s ). The Rhine and the Danube formed most of the northern inland frontier of the Roman Empire and, since those days, the Rhine has been a vital and navigable waterway carrying trade and goods deep inland. Its importance as a waterway in the Holy Roman Empire is supported by the many castles and fortifications built along it. In the modern era, it has become a symbol of German nationalism. Contents 1 Name 2 Geography 2.1 Alpine Rhine 2.1. 1 Headwaters and sources 2.1. 2 Hinterrhein and Vorderrhein 2.1. 3 Rhine Valley 2.2 Lake Constance 2.2. 1 Obersee 2.2. 2 Seerhein 2.2. 3 Untersee 2.3 High Rhine 2.4 Upper Rhine 2.5 Middle Rhine 2.6 Lower Rhine 2.7 Delta 3 Geologic history 3.1 Alpine orogeny 3.2 Stream capture 3.3 End of the last ice age 3.4 Holocene delta 4 Cultural history 4.1 Antiquity 4.2 Medieval and modern history 5 Lists of features 5.1 Cities on the Rhine 5.2 Countries and borders 5.3 Bridges 5.4 Former distributaries 5.5 Canals 6 See also 7 Notes and references 7.1 Notes 7.2 References 7.3 Bibliography 8 External links Name The variants of the name of the Rhine in modern languages are all derived from the Gaulish name Rēnos, which was adapted in Roman - era geography ( 1st century BC ) as Greek Ῥῆνος ( Rhēnos ), Latin Rhenus. The spelling with Rh - in English Rhine as well as in German Rhein and French Rhin is due to the influence of Greek orthography, while the vocalisation - i - is due to the Proto - Germanic adoption of the Gaulish name as * Rīnaz, via Old Frankish giving Old English Rín, Old High German Rīn, early Middle Dutch ( c. 1200 ) Rijn ( then also spelled Ryn or Rin ). The diphthong in modern German Rhein ( also adopted in Romansh Rein, Rain ) is a Central German development of the early modern period, the Alemannic name Rī ( n ) retaining the older vocalism, as does Ripuarian Rhing, while Palatine has diphthongized Rhei, Rhoi. Spanish is with French in adopting the Germanic vocalism Rin -, while Italian, Occitan and Portuguese retain the Latin Ren -. The Gaulish name Rēnos ( Proto - Celtic or pre-Celtic * Reinos ) belongs to a class of river names built from the PIE root * rei - `` to move, flow, run '', also found in other names such as the Reno in Italy. The grammatical gender of the Celtic name ( as well as of its Greek and Latin adaptation ) is masculine, and the name remains masculine in German, Dutch and French. The Old English river name was variously inflected as masculine or feminine ; and its Old Icelandic adoption was inflected as feminine. Geography The length of the Rhine is conventionally measured in `` Rhine - kilometers '' ( Rheinkilometer ), a scale introduced in 1939 which runs from the Old Rhine Bridge at Constance ( 0 km ) to Hoek van Holland ( 1036.20 km ). The river length is significantly shortened from the river 's natural course due to a number of canalisation projects completed in the 19th and 20th century. The `` total length of the Rhine '', to the inclusion of Lake Constance and the Alpine Rhine is more difficult to measure objectively ; it was cited as 1,232 kilometres ( 766 miles ) by the Dutch Rijkswaterstaat in 2010. Its course is conventionally divided as follows : length section avg. discharge elevation left tributaries ( incomplete ) right tributaries ( incomplete ) 76 km The various sources and headwaters forming the Vorderrhein and Hinterrhein within Grisons, Switzerland 114 m / s 584 m Aua Russein, Schmuèr Rein da Tuma, Rein da Curnera, Rein da Medel, Rein da Sumvitg ( Rein da Vigliuts ), Glogn ( Valser Rhine ), Rabiusa, Hinterrhein ( right : Ragn da Ferrera, Albula / Alvra ( left : Gelgia ; right : Landwasser ) ) c. 90 km The Alpine Rhine along the Rhine Valley ( forming part of the Austrian - Swiss and Liechtenstein border ). 400 m Tamina Plessur, Landquart, Ill c. 60 km Lake Constance, including the short channel called Seerhein at Constance, connecting Obersee ( Lake Constance ) and Untersee ( Lake Constance ) ; 395 m Goldach Dornbirner Ach, Leiblach, Schussen, Rotach, Brunnisaach, Lipbach, Seefelder Aach, Radolfzeller Aach c. 150 km the High Rhine from the exit of Lake Constance to Basel, forming a substantial part of the German - Swiss border 1,300 m / s 246 m Thur, Töss, Glatt, Aare, Ergolz, Birs Wutach 362 km the Upper Rhine from Basel to Bingen forming the Upper Rhine Plain and in its upper course the Franco - German border 79 m Ill, Moder, Lauter, Nahe Wiese, Elz ( Rhine ), Kinzig ( Rhine ), Rench, Acher, Murg, Alb, Pfinz, Neckar, Main 159 km the Middle Rhine between Bingen and either Bonn or Cologne is entirely within Germany, passing the Rhine Gorge ; 45 m Moselle, Nette, Ahr Lahn, Wied, Sieg 177 km the Lower Rhine downstream of Bonn, passing the Lower Rhine region of Northrhine - Westphalia 11 m Erft Wupper, Düssel, Ruhr, Emscher, Lippe c. 50 km the Nederrijn or `` Nether Rhine '' ( shortened course of Oude Rijn within the Rhine -- Meuse -- Scheldt delta in the Netherlands. 2,900 m / s 0 m Meuse Oude IJssel, Berkel Jump up ^ length of the Vorderrhein ( including Rein da Medel ) Jump up ^ Constance to Basel : Rheinkilometer 0 -- 167. Jump up ^ At the confluence of Aare and Rhine, the Aare at 560 m3 / s carries more water on average than the Rhine at 439 m3 / s, so that hydrographically speaking the Rhine is a right tributary of the Aare. Jump up ^ Basel to Bingen : Rheinkilometer 167 -- 529. Jump up ^ Bingen to Cologne : Rheinkilometer 529 -- 688 ( 159 km ) ; there is no unambiguous definition of the Middle Rhine, some would prefer to have it begin further upstream, at the mouth of the Main. Jump up ^ Rheinkilometer 688 -- 865.5 ( 177.5 km ) from Cologne to the Dutch - German border Jump up ^ the total discharge of the Rhine is subject to significant fluctuations, and average values cited vary between sources ; the total discharge taken into account here consists of : Maasmond : 1450 m / s, Haringvliet : 820 m / s, Den Oever : 310 m / s, Kornwerderzand : 220 m / s, IJmuiden : 9 m / s, Scheldt -- Rhine Canal 10 m / s Alpine Rhine Main article : Alpine Rhine Map of the Alpine Rhine Headwaters and sources Main article : Sources of the Rhine Lake Toma, seen from the upstream end The Rhine carries its name without distinctive accessories only from the confluence of the Vorderrhein and Hinterrhein near Tamins - Reichenau. Above this point is the extensive catchment of the headwaters of the Rhine. It belongs almost exclusively to the Swiss Canton of Graubünden, ranging from Gotthard Massif in the west via one valley lying in Ticino and Italy in the south to the Flüela Pass in the east. Traditionally, Lake Toma near the Oberalp Pass in the Gotthard region is seen as the source of the Vorderrhein and the Rhine as a whole. The Hinterrhein rises in the Rheinwald valley below Mount Rheinwaldhorn. Hinterrhein and Vorderrhein Main articles : Vorderrhein and Hinterrhein ( river ) The source of the river is generally considered north of Lai da Tuma ( Tomasee ) on Vorderrhein / Rein Anteriur, although its southern tributary Rein da Medel is actually longer before its confluence with the Vorderrhein near Disentis. The Vorderrhein, or Anterior Rhine, springs from Lai da Tuma ( Tomasee ), near the Oberalp Pass and passes the impressive Ruinaulta formed by the largest visible rock slide in the alps, the Flims Rockslide. A multiday trekking route is signposted along the young Rhine called Senda Sursilvana. The Hinterrhein / Rein Posteriur, or Posterior Rhine, starts from the Paradies Glacier, near the Rheinwaldhorn. One of its tributaries, the Reno di Lei, drains the Valle di Lei on politically Italian territory. After three main valleys separated by the two gorges, Roflaschlucht and Viamala, it reaches Reichenau. Confluence of the Hinterrhein ( right ) and the Vorderrhein ( left ) at Reichenau The Vorderrhein ( English : Anterior Rhine ) arises from numerous source streams in the upper Surselva and flows in an easterly direction. One source is Lai da Tuma ( 2345 m ) with the Rein da Tuma, which is usually indicated as source of the Rhine, flowing through it. Into it flow tributaries from the south, some longer, some equal in length, such as the Reno di Medel, the Rein da Maighels, and the Rein da Curnera. The Cadlimo Valley in the Canton of Ticino is drained by the Reno di Medel, which crosses the geomorphologic Alpine main ridge from the south. All streams in the source area are partially, sometimes completely, captured and sent to storage reservoirs for the local hydro - electric power plants. In its lower course the Vorderrhein flows through a gorge named Ruinaulta through the Flims Rockslide. The whole stretch of the Vorderrhein to the Rhine confluence near Reichenau - Tamins is accompanied by a long - distance hiking trail called Senda Sursilvana. The Hinterrhein ( English : Posterior Rhine ) flows first east - northeast, then north. It flows through the three valleys named Rheinwald, Schams and Domleschg - Heinzenberg. The valleys are separated by the Rofla Gorge and Viamala Gorge. Its sources are located in the Adula Alps ( Rheinwaldhorn, Rheinquellhorn and Güferhorn ). The Avers Rhine joins from the South. One of its headwaters, the Reno di Lei ( stowed in the Lago di Lei ), is partially located in Italy. Near Sils the Hinterrhein is joined by the Albula, from the East, from the Albula Pass region. The Albula draws its water mainly from the Landwasser with the Dischmabach as the largest source stream, but almost as much from the Gelgia, which comes down from the Julier Pass. The confluence of the Anterior Rhine to the left and the Posterior Rhine to right, forming the Alpine Rhine at Reichenau Numerous larger and smaller tributary rivers bear the name of the Rhine or equivalent in various Romansh idioms like Rein or Ragn. Examples : Vorderrhine area : Vorderrhein / Rein Anteriur, Rein da Medel, Rein da Tuma, Rein da Curnera, Rein da Maighels, Rein da Cristallina, Rein da Nalps, Rein da Plattas, Rein da Sumvitg, Rein da Vigliuts, Valser Rhine Hinterrhein basin : Hinterrhein / Rein Posteriur, Reno di Lei, Madrischer Rhein, Avers Rhine, Jufer Rhein Albula - Landwasser area : In the Dischma valley, near Davos, far east of the Rhine, there 's a place called Am Rin ( `` Upon Rhine '' ). A tributary of the Dischma is called Riner Tälli. Nearby, on the other side of the Sertig, is the Rinerhorn. Rhine valley Rhine at Fläsch, just before it becomes the border to Liechtenstein See also : Rheintal Near Tamins - Reichenau the Anterior Rhine and the Posterior Rhine join and form the Rhine. The river makes a distinctive turn to the north near Chur. This section is nearly 86 km long, and descends from a height of 599 m to 396 m. It flows through a wide glacial alpine valley known as the Rhine Valley ( German : Rheintal ). Near Sargans a natural dam, only a few metres high, prevents it from flowing into the open Seeztal valley and then through Lake Walen and Lake Zurich into the river Aare. The Alpine Rhine begins in the most western part of the Swiss canton of Graubünden, and later forms the border between Switzerland to the West and Liechtenstein and later Austria to the East. As an effect of human work, it empties into Lake Constance on Austrian territory and not on the border that follows its old natural river bed. The mouth of the Rhine into Lake Constance forms an inland delta. The delta is delimited in the West by the Alter Rhein ( `` Old Rhine '' ) and in the East by a modern canalized section. Most of the delta is a nature reserve and bird sanctuary. It includes the Austrian towns of Gaißau, Höchst and Fußach. The natural Rhine originally branched into at least two arms and formed small islands by precipitating sediments. In the local Alemannic dialect, the singular is pronounced `` Isel '' and this is also the local pronunciation of Esel ( `` Donkey '' ). Many local fields have an official name containing this element. Alpine Rhine delta at Lake Constance A regulation of the Rhine was called for, with an upper canal near Diepoldsau and a lower canal at Fußach, in order to counteract the constant flooding and strong sedimentation in the western Rhine Delta. The Dornbirner Ach had to be diverted, too, and it now flows parallel to the canalized Rhine into the lake. Its water has a darker color than the Rhine ; the latter 's lighter suspended load comes from higher up the mountains. It is expected that the continuous input of sediment into the lake will silt up the lake. This has already happened to the former Lake Tuggenersee. The cut - off Old Rhine at first formed a swamp landscape. Later an artificial ditch of about two km was dug. It was made navigable to the Swiss town of Rheineck. Lake Constance Satellite image. In the center and on the right ( i.e. to the East ) the larger part of Lake Constance, called the Obersee, is visible, and it includes, in the lower right, the Delta of the Alpine Rhine. The northwesterly `` finger '' ( on the top left ) is Lake Überlingen, containing the island of Mainau. Below Lake Überlingen ( also in the West ) is the smaller Untersee, containing Reichenau Island. The Obersee and Untersee are connected by the four kilometers long Seerhein. On the left the High Rhine can be seen. Main article : Lake Constance Lake Constance consists of three bodies of water : the Obersee ( `` upper lake '' ), the Untersee ( `` lower lake '' ), and a connecting stretch of the Rhine, called the Seerhein ( `` Lake Rhine '' ). The lake is situated in Germany, Switzerland and Austria near the Alps. Specifically, its shorelines lie in the German states of Bavaria and Baden - Württemberg, the Austrian state of Vorarlberg, and the Swiss cantons of Thurgau and St. Gallen. The Rhine flows into it from the south following the Swiss - Austrian border. It is located at approximately 47 ° 39 ′ N 9 ° 19 ′ E ﻿ / ﻿ 47.650 ° N 9.317 ° E ﻿ / 47.650 ; 9.317. Obersee Main article : Obersee ( Lake Constance ) The flow of cold, gray mountain water continues for some distance into the lake. The cold water flows near the surface and at first does n't mix with the warmer, green waters of Upper Lake. But then, at the so - called Rheinbrech, the Rhine water abruptly falls into the depths because of the greater density of cold water. The flow reappears on the surface at the northern ( German ) shore of the lake, off the island of Lindau. The water then follows the northern shore until Hagnau am Bodensee. A small fraction of the flow is diverted off the island of Mainau into Lake Überlingen. Most of the water flows via the Constance hopper into the Rheinrinne ( `` Rhine Gutter '' ) and Seerhein. Depending on the water level, this flow of the Rhine water is clearly visible along the entire length of the lake. The Rhine carries very large amounts of debris into the lake. In the mouth region, it is therefore necessary to permanently remove gravel by dredging. The large sediment loads are partly due to the extensive land improvements upstream. Three countries border the Obersee, namely Switzerland in the south, Austria in the southeast and the German states of Bavaria in the northeast and Baden - Württemberg in the north and northwest. Seerhein Main article : Seerhein Distances markers along the Rhine indicate distances from this bridge in Constance The 555km marker, downstream from the Lorelei The Seerhein is only four km long. It connects the Obersee with the 30 cm lower Untersee. Distance markers along the Rhine measure the distance from the bridge in the old city centre of Constance. For most of its length, the Seerhein forms the border between Germany and Switzerland. The exception is the old city centre of Constance, on the Swiss side of the river. The Seerhein emerged in the last thousands of years, when erosion caused the lake level to be lowered by about 10 metres. Previously, the two lakes formed a single lake, as the name still suggests. Untersee Main article : Untersee ( Lake Constance ) Like in the Obersee, the flow the Rhine can be traced in the Untersee. Here, too, the river water is hardly mixed with the lake water. The northern parts of the Untersee ( Lake Zell and Gnadensee ) remain virtually unaffected by the flow. The river traverses the southern, which, in isolation, is sometimes called Rhinesee ( `` Lake Rhine '' )., The Radolfzeller Aach adds large amounts of water from the Danube system to the Untersee. Reichenau Island was formed at the same time as the Seerhein, when the water level was lowered to its current level. Lake Untersee is part of the border between Switzerland and Germany, with Germany on the North bank and Switzerland on the south, except both sides are Swiss in Stein am Rhein, where the High Rhine flows out of the lake. High Rhine Main article : High Rhine The High Rhine The Rhine Falls at Schaffhausen ( Switzerland ) The Rhine emerges from Lake Constance, flows generally westward, as the Hochrhein, passes the Rhine Falls, and is joined by its major tributary, the river Aare. The Aare more than doubles the Rhine 's water discharge, to an average of nearly 1,000 m / s ( 35,000 cu ft / s ), and provides more than a fifth of the discharge at the Dutch border. The Aare also contains the waters from the 4,274 m ( 14,022 ft ) summit of Finsteraarhorn, the highest point of the Rhine basin. The Rhine roughly forms the German - Swiss border from Lake Constance with the exceptions of the canton of Schaffhausen and parts of the cantons of Zürich and Basel - Stadt, until it turns north at the so - called Rhine knee at Basel, leaving Switzerland. The High Rhine begins in Stein am Rhein at the western end of the Untersee. Unlike the Alpine Rhine and Upper Rhine, it flows to the west. It falls from 395 m to 252 m. Some stretches of the High Rhine between Stein am Rhein and Eglisau form the border between Switzerland on the South bank and Germany in the North. On other stretches, both sides are Swiss ; in fact most of the Canton of Schaffhausen is on the North bank. Between Eglisau and Basel, the High Rhine consistently forms the border. The Rhine Falls are situated below Schaffhausen. It has an average water flow of 373 m3 / s ( mean summer discharge 700 m3 / s ) and is the second largest waterfall in Europe in terms of potential energy, after Dettifoss in Iceland. The High Rhine is characterized by numerous dams. On the few remaining natural sections, there are still several rapids. Near Koblenz in the Aargau, the Aare joins the Rhine. With an average discharge of 557 m3 / s, the Aare is more voluminous than the Rhine, which has an average discharge of 439 m3 / s. Nevertheless, the Alpine Rhine is considered the main branch, because it is longer. Upper Rhine Main article : Upper Rhine Rhein ( front ) and Rhine canal ( back ) near Breisach In the centre of Basel, the first major city in the course of the stream, is located the `` Rhine knee '' ; this is a major bend, where the overall direction of the Rhine changes from West to North. Here the High Rhine ends. Legally, the Central Bridge is the boundary between High and Upper Rhine. The river now flows North as Upper Rhine through the Upper Rhine Plain, which is about 300 km long and up to 40 km wide. The most important tributaries in this area are the Ill below of Strasbourg, the Neckar in Mannheim and the Main across from Mainz. In Mainz, the Rhine leaves the Upper Rhine Valley and flows through the Mainz Basin. View of the Mainz Basin downstreams of Mainz, from Eltville and Erbach to Bingen The southern half of the Upper Rhine forms the border between France ( Alsace ) and Germany ( Baden - Württemberg ). The northern part forms the border between the German states of Rhineland - Palatinate in the West on the one hand, and Baden - Württemberg and Hesse on the other hand, in the east and north. A curiosity of this border line is that the parts of the city of Mainz on the right bank of the Rhine were given to Hesse by the occupying forces in 1945. The Upper Rhine was a significant cultural landscape in Central Europe already in antiquity and during the Middle Ages. Today, the Upper Rhine area hosts many important manufacturing and service industries, particularly in the centers Basel, Strasbourg and Mannheim - Ludwigshafen. Strasbourg is the seat of the European Parliament, and so one of the three European capitals is located on the Upper Rhine. The Upper Rhine region was changed significantly by a Rhine straightening program in the 19th Century. The rate of flow was increased and the ground water level fell significantly. Dead branches were removed by construction workers and the area around the river was made more habitable for humans flood plains as flooding decreased sharply. On the French side, the Grand Canal d'Alsace was dug, which carries a significant part of the river water, and all of the traffic. In some places, there are large compensation pools, for example, the huge Bassin de compensation de Plobsheim in Alsace. The Upper Rhine river has undergone significant human change since the 19th century. While it was slightly modified during the Roman occupation, it was not until the emergence of engineers such as Johann Gottfried Tulla that significant modernization efforts changed the shape of the river. Earlier work under Frederick the Great surrounded efforts to ease shipping and construct dams to serve coal transportation. Tulla is considered to have domesticated the Upper Rhine, domestication that served goals such as reducing stagnant bogs that fostered waterborne diseases, making regions more habitable for human settlement, and reduce high frequency of flooded water. Not long before Tulla went to work on widening and straightening the river heavy floods had brought significant loss of life. Four diplomatic treaties were signed among German state governments and French regions dealing with the changes proposed along the Rhine, one was `` the Treaty for the Rectification of the Rhine flow from Neuberg to Dettenheim '' ( 1817 ), which surrounded states such as Bourbon France and the Bavarian Palatinate. Loops, oxbows, branches and islands were removed along the Upper Rhine so that there would be a present uniformity to the river. The engineering of the Rhine was not without protest, farmers and fishermen had grave concerns about valuable fishing areas and farmland being lost. While some areas lost ground, other areas saw swamps and bogs be drained and turned into arable land. Johann Tulla had the goal of shortening and straightening the Upper Rhine river. Early engineering projects the Upper Rhine also had issues, with Tulla 's project at one part of the river creating rapids, after the Rhine cut down from erosion to sheer rock. Engineering along the Rhine river eased flooding and made transportation along the river less cumbersome. These state projects were part of the advanced and technical progress efforts going on in the country alongside the industrial revolution. For the German state, to make the river more predictable was to ensure development projects could easily commence. The section of the Upper Rhine downstream from Mainz is also known as the `` Island Rhine ''. Here a number of river islands occur, locally known as `` Rheinauen ''. Middle Rhine Main article : Middle Rhine The Rhine is the longest river in Germany. It is here that the Rhine encounters some more of its main tributaries, such as the Neckar, the Main and, later, the Moselle, which contributes an average discharge of more than 300 m / s ( 11,000 cu ft / s ). Northeastern France drains to the Rhine via the Moselle ; smaller rivers drain the Vosges and Jura Mountains uplands. Most of Luxembourg and a very small part of Belgium also drain to the Rhine via the Moselle. As it approaches the Dutch border, the Rhine has an annual mean discharge of 2,290 m / s ( 81,000 cu ft / s ) and an average width of 400 m ( 1,300 ft ). Play media Rhine by ship from Assmannshausen to Rüdesheim ( Video 2008 ) Between Bingen and Bonn, the Middle Rhine flows through the Rhine Gorge, a formation which was created by erosion. The rate of erosion equaled the uplift in the region, such that the river was left at about its original level while the surrounding lands raised. The gorge is quite deep and is the stretch of the river which is known for its many castles and vineyards. It is a UNESCO World Heritage Site ( 2002 ) and known as `` the Romantic Rhine '', with more than 40 castles and fortresses from the Middle Ages and many quaint and lovely country villages. Until the early 1980s, industry was a major source of water pollution. Although many plants and factories can be found along the Rhine up into Switzerland, it is along the Lower Rhine that the bulk of them are concentrated, as the river passes the major cities of Cologne, Düsseldorf and Duisburg. Duisburg is the home of Europe 's largest inland port and functions as a hub to the sea ports of Rotterdam, Antwerp and Amsterdam. The Ruhr, which joins the Rhine in Duisburg, is nowadays a clean river, thanks to a combination of stricter environmental controls, a transition from heavy industry to light industry and cleanup measures, such as the reforestation of Slag and brownfields. The Ruhr currently provides the region with drinking water. It contributes 70 m / s ( 2,500 cu ft / s ) to the Rhine. Other rivers in the Ruhr Area, above all, the Emscher, still carry a considerable degree of pollution. Between Strasbourg and Kehl Bridge at Karlsruhe Aerial photo between Eltville and Bingen Marksburg near Koblenz, built in 1231 The Rhine in Cologne, Germany Rhine at Düsseldorf View of the Middle Rhine Valley and Burg Katz, in the background Lorelei The Mainz Basin ends in Bingen am Rhein ; the Rhine continues as `` Middle Rhine '' into the Rhine Gorge in the Rhenish Slate Mountains. In this sections the river falls from 77.4 m above sea level to 50.4 m. On the left, is located the mountain ranges of Hunsrück and Eifel, on the right Taunus and Westerwald. According to geologists, the characteristic narrow valley form was created by erosion by the river while the surrounding landscape was lifted ( see water gap ). Major tributaries in this section are the Lahn and the Moselle. They join the Rhine near Koblenz, for the right and left respectively. Almost the entire length of the Middle Rhine runs in the German state of Rhineland - Palatinate. The dominant economic sectors in the Middle Rhine area are viniculture and tourism. The Rhine Gorge between Rüdesheim am Rhein and Koblenz is listed as a UNESCO World Heritage Site. Near Sankt Goarshausen, the Rhine flows around the famous rock Lorelei. With its outstanding architectural monuments, the slopes full of vines, settlements crowded on the narrow river banks and scores of castles lined up along the top of the steep slopes, the Middle Rhine Valley can be considered the epitome of the Rhine romanticism. Lower Rhine Main article : Lower Rhine Low water in Düsseldorf The Lower Rhine at Emmerich In Bonn, where the Sieg flows into the Rhine, the Rhine enters the North German Plain and turns into the Lower Rhine. The Lower Rhine falls from 50 m to 12 m. The main tributaries on this stretch are the Ruhr and the Lippe. Like the Upper Rhine, the Lower Rhine used to meander until engineering created a solid river bed. Because the levees are some distance from the river, at high tide the Lower Rhine has more room for widening than the Upper Rhine. The Lower Rhine flows through North Rhine - Westphalia. Its banks are usually heavily populated and industrialized, in particular the agglomerations Cologne, Düsseldorf and Ruhr area. Here the Rhine flows through the largest conurbation in Germany, the Rhine - Ruhr region. One of the most important cities in this region is Duisburg with the largest river port in Europe ( Duisport ). The region downstream of Duisburg is more agricultural. In Wesel, 30 km downstream of Duisburg, is located the western end of the second east - west shipping route, the Wesel - Datteln Canal, which runs parallel to the Lippe. Between Emmerich and Cleves the Emmerich Rhine Bridge, the longest suspension bridge in Germany, crosses the 400 - metre - wide ( 1,300 ft ) river. Near Krefeld, the river crosses the Uerdingen line, the line which separates the areas where Low German and High German are spoken. Delta Main articles : Rhine -- Meuse -- Scheldt delta and Nether Rhine The central and northern parts of the Rhine - Meuse delta Changing the Meuse estuary in 1904 : light blue old course, dark blue today 's course Partition of Rhine and Meuse water among the various branches of their delta Rhine near Wageningen The Dutch name for Rhine is `` Rijn ''. The Rhine turns west and enters the Netherlands, where, together with the rivers Meuse and Scheldt, it forms the extensive Rhine - Meuse - Scheldt delta, with 25,347 km ( 9,787 sq mi ) the largest river delta in Europe. Crossing the border into the Netherlands at Spijk, close to Nijmegen and Arnhem, the Rhine is at its widest, although the river then splits into three main distributaries : the Waal ( river ), Nederrijn ( `` Nether Rhine '' ) and IJssel. From here, the situation becomes more complicated, as the Dutch name Rijn no longer coincides with the main flow of water. Two thirds of the water flow volume of the Rhine flows farther west, through the Waal and then, via the Merwede and Nieuwe Merwede ( De Biesbosch ), merging with the Meuse, through the Hollands Diep and Haringvliet estuaries, into the North Sea. The Beneden Merwede branches off, near Hardinxveld - Giessendam and continues as the Noord, to join the Lek, near the village of Kinderdijk, to form the Nieuwe Maas ; then flows past Rotterdam and continues via Het Scheur and the Nieuwe Waterweg, to the North Sea. The Oude Maas branches off, near Dordrecht, farther down rejoining the Nieuwe Maas to form Het Scheur. The other third of the water flows through the Pannerdens Kanaal and redistributes in the IJssel and Nederrijn. The IJssel branch carries one ninth of the water flow of the Rhine north into the IJsselmeer ( a former bay ), while the Nederrijn carries approximately two ninths of the flow west along a route parallel to the Waal. However, at Wijk bij Duurstede, the Nederrijn changes its name and becomes the Lek. It flows farther west, to rejoin the Noord River into the Nieuwe Maas and to the North Sea. The name Rijn, from here on, is used only for smaller streams farther to the north, which together formed the main river Rhine in Roman times. Though they retained the name, these streams no longer carry water from the Rhine, but are used for draining the surrounding land and polders. From Wijk bij Duurstede, the old north branch of the Rhine is called Kromme Rijn ( `` Bent Rhine '' ) past Utrecht, first Leidse Rijn ( `` Rhine of Leiden '' ) and then, Oude Rijn ( `` Old Rhine '' ). The latter flows west into a sluice at Katwijk, where its waters can be discharged into the North Sea. This branch once formed the line along which the Limes Germanicus were built. During periods of lower sea levels within the various ice ages, the Rhine took a left turn, creating the Channel River, the course of which now lies below the English Channel. The Rhine - Meuse Delta, the most important natural region of the Netherlands begins near Millingen aan de Rijn, close to the Dutch - German border with the division of the Rhine into Waal and Nederrijn. Since the Rhine contributes most of the water, the shorter term Rhine Delta is commonly used. However, this name is also used for the river delta where the Rhine flows into Lake Constance, so it is clearer to call the larger one Rhine - Meuse delta, or even Rhine -- Meuse -- Scheldt delta, as the Scheldt ends in the same delta. The shape of the Rhine delta is determined by two bifurcations : first, at Millingen aan de Rijn, the Rhine splits into Waal and Pannerdens Kanaal, which changes its name to Nederrijn at Angeren, and second near Arnhem, the IJssel branches off from the Nederrijn. This creates three main flows, two of which change names rather often. The largest and southern main branch begins as Waal and continues as Boven Merwede ( `` Upper Merwede '' ), Beneden Merwede ( `` Lower Merwede '' ), Noord River ( `` North River '' ), Nieuwe Maas ( `` New Meuse '' ), Het Scheur ( `` the Rip '' ) and Nieuwe Waterweg ( `` New Waterway '' ). The middle flow begins as Nederrijn, then changes into Lek, then joins the Noord, thereby forming Nieuwe Maas. The northern flow keeps the name IJssel until it flows into Lake IJsselmeer. Three more flows carry significant amounts of water : the Nieuwe Merwede ( `` New Merwede '' ), which branches off from the southern branch where it changes from Boven to Beneden Merwede ; the Oude Maas ( `` Old Meuse '' ), which branches off from the southern branch where it changes from Beneden Merwede into Noord, and Dordtse Kil, which branches off from Oude Maas. Before the St. Elizabeth 's flood ( 1421 ), the Meuse flowed just south of today 's line Merwede - Oude Maas to the North Sea and formed an archipelago - like estuary with Waal and Lek. This system of numerous bays, estuary - like extended rivers, many islands and constant changes of the coastline, is hard to imagine today. From 1421 to 1904, the Meuse and Waal merged further upstream at Gorinchem to form Merwede. For flood protection reasons, the Meuse was separated from the Waal through a lock and diverted into a new outlet called `` Bergse Maas '', then Amer and then flows into the former bay Hollands Diep. The northwestern part of the estuary ( around Hook of Holland ), is still called Maasmond ( `` Meuse Mouth '' ), ignoring the fact that it now carries only water from the Rhine. This might explain the confusing naming of the various branches. The hydrography of the current delta is characterized by the delta 's main arms, disconnected arms ( Hollandse IJssel, Linge, Vecht, etc. ) and smaller rivers and streams. Many rivers have been closed ( `` dammed '' ) and now serve as drainage channels for the numerous polders. The construction of Delta Works changed the Delta in the second half of the 20th Century fundamentally. Currently Rhine water runs into the sea, or into former marine bays now separated from the sea, in five places, namely at the mouths of the Nieuwe Merwede, Nieuwe Waterway ( Nieuwe Maas ), Dordtse Kil, Spui and IJssel. The Rhine - Meuse Delta is a tidal delta, shaped not only by the sedimentation of the rivers, but also by tidal currents. This meant that high tide formed a serious risk because strong tidal currents could tear huge areas of land into the sea. Before the construction of the Delta Works, tidal influence was palpable up to Nijmegen, and even today, after the regulatory action of the Delta Works, the tide acts far inland. At the Waal, for example, the most landward tidal influence can be detected between Brakel and Zaltbommel. Geologic History Alpine orogeny Schematic cross section of the Upper Rhine Graben. The Rhine flows from the Alps to the North Sea Basin ; the geography and geology of its present - day watershed has been developing, since the Alpine orogeny began. In southern Europe, the stage was set in the Triassic Period of the Mesozoic Era, with the opening of the Tethys Ocean, between the Eurasian and African tectonic plates, between about 240 MBP and 220 MBP ( million years before present ). The present Mediterranean Sea descends from this somewhat larger Tethys sea. At about 180 MBP, in the Jurassic Period, the two plates reversed direction and began to compress the Tethys floor, causing it to be subducted under Eurasia and pushing up the edge of the latter plate in the Alpine Orogeny of the Oligocene and Miocene Periods. Several microplates were caught in the squeeze and rotated or were pushed laterally, generating the individual features of Mediterranean geography : Iberia pushed up the Pyrenees ; Italy, the Alps, and Anatolia, moving west, the mountains of Greece and the islands. The compression and orogeny continue today, as shown by the ongoing raising of the mountains a small amount each year and the active volcanoes. In northern Europe, the North Sea Basin had formed during the Triassic and Jurassic periods and continued to be a sediment receiving basin since. In between the zone of Alpine orogeny and North Sea Basin subsidence, remained highlands resulting from an earlier orogeny ( Variscan ), such as the Ardennes, Eifel and Vosges. From the Eocene onwards, the ongoing Alpine orogeny caused a N -- S rift system to develop in this zone. The main elements of this rift are the Upper Rhine Graben, in southwest Germany and eastern France and the Lower Rhine Embayment, in northwest Germany and the southeastern Netherlands. By the time of the Miocene, a river system had developed in the Upper Rhine Graben, that continued northward and is considered the first Rhine river. At that time, it did not yet carry discharge from the Alps ; instead, the watersheds of the Rhone and Danube drained the northern flanks of the Alps. Stream capture The watershed of the Rhine reaches into the Alps today, but it did not start out that way. In the Miocene period, the watershed of the Rhine reached south, only to the Eifel and Westerwald hills, about 450 km ( 280 mi ) north of the Alps. The Rhine then had the Sieg as a tributary, but not yet the Moselle ( river ). The northern Alps were then drained by the Danube. Through stream capture, the Rhine extended its watershed southward. By the Pliocene period, the Rhine had captured streams down to the Vosges Mountains, including the Mosel, the Main and the Neckar. The northern Alps were then drained by the Rhone. By the early Pleistocene period, the Rhine had captured most of its current Alpine watershed from the Rhône, including the Aare. Since that time, the Rhine has added the watershed above Lake Constance ( Vorderrhein, Hinterrhein, Alpenrhein ; captured from the Rhône ), the upper reaches of the Main, beyond Schweinfurt and the Vosges Mountains, captured from the Meuse, to its watershed. Around 2.5 million years ago ( ending 11,600 years ago ) was the geological period of the Ice Ages. Since approximately 600,000 years ago, six major Ice Ages have occurred, in which sea level dropped 120 m ( 390 ft ) and much of the continental margins became exposed. In the Early Pleistocene, the Rhine followed a course to the northwest, through the present North Sea. During the so - called Anglian glaciation ( ~ 450,000 yr BP, marine oxygen isotope stage 12 ), the northern part of the present North Sea was blocked by the ice and a large lake developed, that overflowed through the English Channel. This caused the Rhine 's course to be diverted through the English Channel. Since then, during glacial times, the river mouth was located offshore of Brest, France and rivers, like the Thames and the Seine, became tributaries to the Rhine. During interglacials, when sea level rose to approximately the present level, the Rhine built deltas, in what is now the Netherlands. The last glacial ran from ~ 74,000 ( BP = Before Present ), until the end of the Pleistocene ( ~ 11,600 BP ). In northwest Europe, it saw two very cold phases, peaking around 70,000 BP and around 29,000 -- 24,000 BP. The last phase slightly predates the global last ice age maximum ( Last Glacial Maximum ). During this time, the lower Rhine flowed roughly west through the Netherlands and extended to the southwest, through the English Channel and finally, to the Atlantic Ocean. The English Channel, the Irish Channel and most of the North Sea were dry land, mainly because sea level was approximately 120 m ( 390 ft ) lower than today. Most of the Rhine 's current course was not under the ice during the last Ice Age ; although, its source must still have been a glacier. A tundra, with Ice Age flora and fauna, stretched across middle Europe, from Asia to the Atlantic Ocean. Such was the case during the Last Glacial Maximum, ca. 22,000 -- 14,000 yr BP, when ice - sheets covered Scandinavia, the Baltics, Scotland and the Alps, but left the space between as open tundra. Loess ( wind - blown topsoil dust ) arose from the south and North Sea plain settling on the slopes of the Alps, Urals and the Rhine Valley, rendering the valleys facing the prevailing winds especially fertile. End of the last ice Age As northwest Europe slowly began to warm up from 22,000 years ago onward, frozen subsoil and expanded alpine glaciers began to thaw and fall - winter snow covers melted in spring. Much of the discharge was routed to the Rhine and its downstream extension. Rapid warming and changes of vegetation, to open forest, began about 13,000 BP. By 9000 BP, Europe was fully forested. With globally shrinking ice - cover, ocean water levels rose and the English Channel and North Sea re-inundated. Meltwater, adding to the ocean and land subsidence, drowned the former coasts of Europe transgressionally. About 11000 yr ago, the Rhine estuary was in the Strait of Dover. There remained some dry land in the southern North Sea, known as Doggerland, connecting mainland Europe to Britain. About 9000 yr ago, that last divide was overtopped / dissected. Man was already resident in the area when these events happened. Since 7500 yr ago the situation of tides, currents and land - forms has resembled the present. Rates of sea - level rise dropped such that natural sedimentation by the Rhine and coastal processes widely compensate for transgression by the sea. In the southern North Sea, due to ongoing tectonic subsidence, the coastline and sea bed are sinking at the rate of about 1 -- 3 cm ( 0.39 -- 1.18 in ) per century ( 1 metre or 39 inches in last 3000 years ). About 7000 -- 5000 BP, a general warming encouraged migration of all former ice - locked areas, including up the Danube and down the Rhine by peoples to the east. A sudden massive expansion of the Black Sea as the Mediterranean Sea burst into it through the Bosporus may have occurred about 7500 BP. Holocene delta At the begin of the Holocene ( ~ 11,700 years ago ), the Rhine occupied its Late - Glacial valley. As a meandering river, it reworked its ice - age floodplain. As sea - level rise continued in the Netherlands, the formation of the Holocene Rhine - Meuse delta began ( ~ 8,000 years ago ). Coeval absolute sea - level rise and tectonic subsidence have strongly influenced delta evolution. Other factors of importance to the shape of the delta are the local tectonic activities of the Peel Boundary Fault, the substrate and geomorphology, as inherited from the Last Glacial and the coastal - marine dynamics, such as barrier and tidal inlet formations. Since ~ 3000 yr BP ( = years Before Present ), human impact is seen in the delta. As a result of increasing land clearance ( Bronze Age agriculture ), in the upland areas ( central Germany ), the sediment load of the Rhine has strongly increased and delta growth has speeded up. This has caused increased flooding and sedimentation, ending peat formation in the delta. In the geologically recent past the main process distributing sediment across the delta has been the shifting of river channels to new locations on the floodplain ( termed avulsion ). Over the past 6000 years, approximately 80 avulsions have occurred. Direct human impact in the delta began with the mining of peat for salt and fuel from Roman times onward. This was followed by embankment of the major distributaries and damming of minor distributaries, which took place in the 11 -- 13th century AD. Thereafter, canals were dug, bends were straightened and groynes were built to prevent the river 's channels from migrating or silting up. At present, the branches Waal and Nederrijn - Lek discharge to the North Sea through the former Meuse estuary, near Rotterdam. The river IJssel branch flows to the north and enters the IJsselmeer ( formerly the Zuider Zee ), initially a brackish lagoon but a freshwater lake since 1932. The discharge of the Rhine is divided into three branches : the River Waal ( 6 / 9 of total discharge ), the River Nederrijn -- Lek ( 2 / 9 of total discharge ) and the River IJssel ( 1 / 9 of total discharge ). This discharge distribution has been maintained since 1709 by river engineering works including the digging of the Pannerdens canal and the installation, in the 20th century, of a series of weirs on the Nederrijn river. Cultural History Main article : Rhineland Further information : Rhenus Pater This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed. ( January 2011 ) Loreley Antiquity Further information : Limes Germanicus The Rhine was not known to Herodotus and first enters the historical period in the 1st century BC in Roman - era geography. At that time, it formed the boundary between Gaul and Germania. The Upper Rhine had been part of the areal of the late Hallstatt culture since the 6th century BC, and by the 1st century BC, the areal of the La Tène culture covered almost its entire length, forming a contact zone with the Jastorf culture, i.e. the locus of early Celtic - Germanic cultural contact. In Roman geography, the Rhine formed the boundary between Gallia and Germania by definition ; e.g. Maurus Servius Honoratus, Commentary on the Aeneid of Vergil ( 8.727 ) ( Rhenus ) fluvius Galliae, qui Germanos a Gallia dividit `` ( The Rhine is a ) river of Gaul, which divides the Germanic people from Gaul. '' In Roman geography, the Rhine and Hercynia Silva were considered the boundary of the civilized world ; as it was a wilderness, the Romans were eager to explore it. This view is typified by Res Gestae Divi Augusti, a long public inscription of Augustus, in which he boasts of his exploits ; including, sending an expeditionary fleet north of the Rheinmouth, to Old Saxony and Jutland, which he claimed no Roman had ever done before. Augustus ordered his general Drusus to establish 50 military camps along the Rhine, starting the Germanic Wars in 12 BC. At this time, the plain of the Lower Rhine was the territory of the Ubii. The first urban settlement, on the grounds of what is today the centre of Cologne, along the Rhine, was Oppidum Ubiorum, which was founded in 38 BC by the Ubii. Cologne became acknowledged, as a city by the Romans in AD 50, by the name of Colonia Claudia Ara Agrippinensium. From the death of Augustus in AD 14 until after AD 70, Rome accepted as her Germanic frontier the water - boundary of the Rhine and upper Danube. Beyond these rivers she held only the fertile plain of Frankfurt, opposite the Roman border fortress of Moguntiacum ( Mainz ), the southernmost slopes of the Black Forest and a few scattered bridge - heads. The northern section of this frontier, where the Rhine is deep and broad, remained the Roman boundary until the empire fell. The southern part was different. The upper Rhine and upper Danube are easily crossed. The frontier which they form is inconveniently long, enclosing an acute - angled wedge of foreign territory between the modern Baden and Württemberg. The Germanic populations of these lands seem in Roman times to have been scanty, and Roman subjects from the modern Alsace - Lorraine had drifted across the river eastwards. The Romans kept eight legions in five bases along the Rhine. The actual number of legions present at any base or in all, depended on whether a state or threat of war existed. Between about AD 14 and 180, the assignment of legions was as follows : for the army of Germania Inferior, two legions at Vetera ( Xanten ), I Germanica and XX Valeria ( Pannonian troops ) ; two legions at oppidum Ubiorum ( `` town of the Ubii '' ), which was renamed to Colonia Agrippina, descending to Cologne, V Alaudae, a Celtic legion recruited from Gallia Narbonensis and XXI, possibly a Galatian legion from the other side of the empire. For the army of Germania Superior : one legion, II Augusta, at Argentoratum ( Strasbourg ) ; and one, XIII Gemina, at Vindonissa ( Windisch ). Vespasian had commanded II Augusta, before his promotion to imperator. In addition, were a double legion, XIV and XVI, at Moguntiacum ( Mainz ). The two original military districts of Germania Inferior and Germania Superior, came to influence the surrounding tribes, who later respected the distinction in their alliances and confederations. For example, the upper Germanic peoples combined into the Alemanni. For a time, the Rhine ceased to be a border, when the Franks crossed the river and occupied Roman - dominated Celtic Gaul, as far as Paris. Germanic tribes crossed the Rhine in the Migration period, by the 5th century establishing the kingdoms of Francia on the Lower Rhine, Burgundy on the Upper Rhine and Alemannia on the High Rhine. This `` Germanic Heroic Age '' is reflected in medieval legend, such as the Nibelungenlied which tells of the hero Siegfried killing a dragon on the Drachenfels ( Siebengebirge ) ( `` dragons rock '' ), near Bonn at the Rhine and of the Burgundians and their court at Worms, at the Rhine and Kriemhild 's golden treasure, which was thrown into the Rhine by Hagen. Medieval and modern History Further information : Rhine romanticism French forces under Louis XIV cross the Rhine into the Netherlands in 1672 By the 6th century, the Rhine was within the borders of Francia. In the 9th, it formed part of the border between Middle and Western Francia, but in the 10th century, it was fully within the Holy Roman Empire, flowing through Swabia, Franconia and Lower Lorraine. The mouths of the Rhine, in the county of Holland, fell to the Burgundian Netherlands in the 15th century ; Holland remained contentious territory throughout the European wars of religion and the eventual collapse of the Holy Roman Empire, when the length of the Rhine fell to the First French Empire and its client states. The Alsace on the left banks of the Upper Rhine was sold to Burgundy by Archduke Sigismund of Austria in 1469 and eventually fell to France in the Thirty Years ' War. The numerous historic castles in Rhineland - Palatinate attest to the importance of the river as a commercial route. Since the Peace of Westphalia, the Upper Rhine formed a contentious border between France and Germany. Establishing `` natural borders '' on the Rhine was a long - term goal of French foreign policy, since the Middle Ages, though the language border was -- and is -- far more to the west. French leaders, such as Louis XIV and Napoleon Bonaparte, tried with varying degrees of success to annex lands west of the Rhine. The Confederation of the Rhine was established by Napoleon, as a French client state, in 1806 and lasted until 1814, during which time it served as a significant source of resources and military manpower for the First French Empire. In 1840, the Rhine crisis, prompted by French prime minister Adolphe Thiers 's desire to reinstate the Rhine as a natural border, led to a diplomatic crisis and a wave of nationalism in Germany. Allied soldiers crossing the Rhine into Germany after the end of WWI, December 1918 The Rhine became an important symbol in German nationalism during the formation of the German state in the 19th century ( see Rhine romanticism ). The song Die Wacht am Rhein, which became almost a national anthem. Das Rheingold -- inspired by the Nibelungenlied, the Rhine is one of the settings for the first opera of Richard Wagner 's Der Ring des Nibelungen. The action of the epic opens and ends underneath the Rhine, where three Rheinmaidens swim and protect a hoard of gold. The Loreley / Lorelei is a rock on the eastern bank of the Rhine, that is associated with several legendary tales, poems and songs. The river spot has a reputation for being a challenge for inexperienced navigators. At the end of World War I, the Rhineland was subject to the Treaty of Versailles. This decreed that it would be occupied by the allies, until 1935 and after that, it would be a demilitarised zone, with the German army forbidden to enter. The Treaty of Versailles and this particular provision, in general, caused much resentment in Germany and is often cited as helping Adolf Hitler 's rise to power. The allies left the Rhineland, in 1930 and the German army re-occupied it in 1936, which was enormously popular in Germany. Although the allies could probably have prevented the re-occupation, Britain and France were not inclined to do so, a feature of their policy of appeasement to Hitler. Soldiers of the US 89th Infantry Division cross the Rhine in assault boats under German fire as part of Operation Plunder on 24 March 1945 In World War II, it was recognised that the Rhine would present a formidable natural obstacle to the invasion of Germany, by the Western Allies. The Rhine bridge at Arnhem, immortalized in the book, A Bridge Too Far and the film, was a central focus of the battle for Arnhem, during the failed Operation Market Garden of September 1944. The bridges at Nijmegen, over the Waal distributary of the Rhine, were also an objective of Operation Market Garden. In a separate operation, the Ludendorff Bridge, crossing the Rhine at Remagen, became famous, when U.S. forces were able to capture it intact -- much to their own surprise -- after the Germans failed to demolish it. This also became the subject of a film, The Bridge at Remagen. Seven Days to the River Rhine was a Warsaw Pact war plan for an invasion of Western Europe during the Cold War. Until 1932 the generally accepted length of the Rhine was 1,230 kilometres ( 764 miles ). In 1932 the German encyclopedia Knaurs Lexikon stated the length as 1,320 kilometres ( 820 miles ), presumably a typographical error. After this number was placed into the authoritative Brockhaus Enzyklopädie, it became generally accepted and found its way into numerous textbooks and official publications. The error was discovered in 2010, and the Dutch Rijkswaterstaat confirms the length at 1,232 kilometres ( 766 miles ). Lists of features Cities on the Rhine Large cities that are situated on the Rhine : Switzerland : Basel France : Strasbourg Germany : Karlsruhe Mannheim Ludwigshafen Wiesbaden Mainz Koblenz Bonn Cologne Leverkusen Neuss Düsseldorf Krefeld ( Uerdingen ) Duisburg Netherlands : Arnhem ( Nederrijn ) Nijmegen ( Waal ) Utrecht ( Kromme Rijn ) Rotterdam ( Nieuwe Maas ) Smaller cities that are situated on the Rhine : Switzerland : Chur Kreuzlingen Schaffhausen Liechtenstein : Vaduz Germany : Konstanz Breisach Speyer Worms Bingen am Rhein Rüdesheim am Rhein Neuwied Andernach Bad Honnef Königswinter Niederkassel Wesseling Dormagen Zons Monheim am Rhein Wesel Xanten Emmerich am Rhein Netherlands : Zutphen ( IJssel ) Deventer ( IJssel ) Zwolle ( IJssel ) Kampen ( IJssel ) Leiden ( Oude Rijn ) Dordrecht ( Merwede ) Countries and borders During its course from the Alps to the North Sea, the Rhine passes through four countries and constitutes six different country borders. On the various parts : the Vorderrhein lies entirely within Switzerland, while at least one tributary to Hinterrhein, Reno di Lei originates in Italy, but is not considered a part of the Rhein proper. the Alpine Rhine flows within Switzerland till Sargans, from which it becomes the border between Switzerland ( to the West ) and Liechtenstein ( to the East ) until Oberriet, and the river never flows within Liechtenstein. It then becomes the border between Switzerland ( to the West ) and Austria ( to the East ) until Diepoldsau where the modern and straight course enters Switzerland, while the original course Alter Rhein makes a bend to the East and continues as the Swiss - Austrian border until the confluence at Widnau. From here the river continues as the border until Lustenau, where the modern and straight course enters Austria ( the only part of the river that flows within Austria ), while the original course makes a bend to the West and continues as the border, until both courses enters Lake Constance. the first half of Seerhein, between the upper and lower body of Lake Constance, flows within Germany ( and the city of Konstanz ), while the second is the German ( to the North ) -- Swiss ( to the South ) frontier. the first parts of the High Rhine, from Lake Constance to Altholz, the river alternates flowing within Switzerland and being the German - Swiss frontier ( three times each ). From Altholz the river is the German -- Swiss border until Basel, where it enters Switzerland for the last time. the Upper Rhine is the border between France ( to the West ) and Switzerland ( to the East ) for a short distance, from Basel to Hunningue. Here it becomes the Franco ( to the West ) -- German ( to the East ) frontier until Au am Rhein. Hence, the main course of the Rhine never flows within France, although some river canals do. From here the river flows within Germany. the Middle Rhine flows entirely within Germany. the Lower Rhine flows within Germany until Emmerich am Rhein, where it becomes the border between The Netherlands ( to the North ) and Germany ( to the South ). At Millingen aan de Rijn the river enters the Netherlands and continues to the North Sea. Bridges Main article : List of bridges over the Rhine Former distributaries Order : panning North to South through the Western Netherlands : Vecht ( Utrecht ) ( minor channel in Roman times, flowing into former Zuider Zee lagoon ) Kromme Rijn -- Oude Rijn ( Utrecht and South Holland ) ( main channel in Roman times, dammed in the 12th century ) Hollandse IJssel ( formed after Roman times, dammed in the 13th century AD ) Linge ( big channel in Roman times, dammed in the 14th century AD ) De Biesbosch - area ( initiated by AD 1421 -- 1424 storm surges and river floods, by - passed since the digging of Nieuwe Merwede canal in AD 1904 ) Canals Order : upstream to downstream : Rhine -- Main -- Danube Canal -- southeastern Germany Grand Canal d'Alsace -- eastern France Rhine - Herne Canal -- northwest Germany, connection to the Dortmund - Ems Canal and the Mittellandkanal Maas - Waal Canal -- eastcentral Netherlands Amsterdam - Rhine Canal -- central Netherlands Scheldt - Rhine Canal -- southwest Netherlands Canal of Drusus See also Central Commission for Navigation on the Rhine EV15 The Rhine Cycle Route Köln - Düsseldorfer Piz Lunghin ( triple watershed : Po -- Rhine -- Danube ) Witenwasserenstock ( triple watershed : Rhone -- Rhine -- Po ) Notes and references Notes ^ Jump up to : The Rhine only has an official length scale ( Rheinkilometer ) downstream of Constance. Its full length is subject to the definition of the Alpine Rhine. In 2010, there were media reports to the effect that the length of the Rhine had long been underreported in 20th - century encyclopedias, and upon request by journalists, Dutch Rijkswaterstaat cited a length of 1,232 km. Schrader, Christopher ; Uhlmann, Berit ( 28 March 2010 ). `` Der Rhein ist kürzer als gedacht -- Jahrhundert - Irrtum ''. sueddeutsche.de ( in German ). Retrieved 27 March 2010... `` Rhine River 90km shorter than everyone thinks ''. The Local -- Germany 's news in English. 27 March 2010. Retrieved 9 April 2010. `` ' We checked it out and came to 1,232 kilometres, ' said Ankie Pannekoek, spokeswoman for the Dutch government hydrology office. '' Jump up ^ The Rhine is cited as the `` twelfth - longest river of Europe '' if the Russian rivers Volga, Ural, Pechora, Kama, Northern Dvina -- Vychegda, Oka and Belaya are counted which are based on the modern conventional boundary between Europe and Asia are within European Russia or form part of the boundary to Asia. Also longer than the Rhine are the Eastern European rivers Dnieper, Don and Dniester flowing into the Black Sea. Jump up ^ The Rhine was not known in the Hellenistic period. It is mentioned by Cicero, In Pisonem 33.81. Strabo ( 1.4. 3 ) mentions the countries `` at the mouth of the Rhine '' αἱ τοῦ Ῥήνου ἐκβολαί ; `` states that the countries `` beyond the Rhine and as far as Scythia '' καὶ τὰ πέραν τοῦ Ῥήνου τὰ μέχρι Σκυθῶ should be considered unknown, as Pytheas ' account of remote nations is not to be trusted. Jump up ^ The loss of final - n in pausa is a recent development in Alemannic, the form Rīn is mostly preserved in Lucerne dialects. Schweizerisches Idiotikon s.v. `` Rī ( n ) '' ( 6,994 ). Jump up ^ Krahe ( 1964 ) claims the hydronym as `` Old European '', i.e. belonging to the oldest Indo - European layer of names predating the 6th century BC ( Hallstatt D ) Celtic expansion. Jump up ^. In Albanian / Illyrian `` Template : Rrhedh '' also means to `` move, flow, run ''. Pokorny 's ( 1959 ) `` 3. er - : or - : r - ' to move, set in motion ' '' ( pp. 326 -- 32 ), laryngealist * h reiH -, with an - n - suffix ; Celtic reflexes : Old Irish renn `` rapid '', rīan `` sea '', Middle Irish rian `` river, way ''. The root gives the Germanic verb rinnan ( ' < * ri - nw - an ) whence English run ( from a causative * rannjanan, Old English eornan ) ; Gothic rinnan `` run, flow, '' Old English rinnan, Old Norse rinna `` to run, '', rinno `` brook '' ; c.f. Sanskrit rinati `` causes to flow '' ; Root cognates without the - n - suffix include Middle Low German ride `` brook '', Old English riþ `` stream '', Dutch ril `` running stream '', Latin rivus `` stream '', Old Church Slavonic reka `` river ''. ; see also `` Rhine ''. Online Etymology Dictionary. Douglas Harper. November 2001. Retrieved 10 February 2009. Jump up ^ most notably the straighening of the Upper Rhine planned by Johann Gottfried Tulla, completed during 1817 -- 1876. Jump up ^ The geomorphological ridge line does not necessarily coincide with the watershed, since it refers to the average altitude in a surrounding circle Jump up ^ sediment management. The Rhine transports each year up to 3 million m3 of solids into the lake References ^ Jump up to : ( official site ) ( in French ). Paris, France : L'Institut National de l'Information Geographique et Forestrière IGN http://tab.geoportail.fr/?c=7.503120422363362,47.67887135071144&z=12&l0=ORTHOIMAGERY.ORTHOPHOTOS:WMTS(1)&l1=GEOGRAPHICALGRIDSYSTEMS.MAPS.SCAN-EXPRESS.STANDARD:WMTS(1)&permalink=yes. Retrieved 2016 - 03 - 06. Missing or empty title = ( help ) Jump up ^ Frijters and Leentvaar ( 2003 ) Jump up ^ Bosworth and Toller, An Anglo - Saxon Dictionary ( 1898 ), p. 799. Sió eá ðe man hǽt Rín Orosius ( ed. J. Bosworth 1859 ) 1.1 Jump up ^ Rijn, Vroegmiddelnederlands Woordenboek Jump up ^ Bosworth and Toller, An Anglo - Saxon Dictionary ( 1898 ), p. 799 : Rín ; m. ; f. The Rhine (... ) O.H. Ger. Rín ; m. : Icel. Rín ; f. Jump up ^ sum of Vorderrhein and Hinterrhein discharges according to Hydrologischer Atlas der Schweiz, 2002, Tab. 5.4 `` Natürliche Abflüsse 1961 -- 1980 ''. ^ Jump up to : `` Maps of Switzerland -- Swiss Confederation -- GEWISS '' ( online map ). Vorderrhein. Gewässernetz 1 : 2 Mio. National Map 1 : 200 000 ( in German ). Cartography by Swiss Federal Office of Topography swisstopo. Berne, Switzerland : Federal Office for the Environment FOEN. 2014. Retrieved 2016 - 01 - 04 -- via http://map.geo.admin.ch. ^ Jump up to : `` Maps of Switzerland -- Swiss Confederation -- GEWISS '' ( online map ). Alpenrhein. Gewässernetz 1 : 2 Mio. National Map 1 : 2 Mio ( in German ). Cartography by Swiss Federal Office of Topography swisstopo. Berne, Switzerland : Federal Office for the Environment FOEN. 2014. Retrieved 2016 - 01 - 04 -- via http://map.geo.admin.ch. ^ Jump up to : `` Maps of Switzerland -- Swiss Confederation -- GEWISS '' ( online map ). Lake Constance. Gewässernetz 1 : 200 000, Flussordnung. National Map 1 : 2 Mio ( in German ). Cartography by Swiss Federal Office of Topography swisstopo. Berne, Switzerland : Federal Office for the Environment FOEN. 2014. Retrieved 2016 - 01 - 05 -- via http://map.geo.admin.ch. Jump up ^ Average over the period 1961 -- 1990 : 1,297 m / s ( M. Spreafico und R. Weingartner, Hydrologie der Schweiz : Ausgewählte Aspekte und Resultate, Berichte des BWG, 2005, citing Schädler and Weingartner, 2002 ) ; regular yearly peak at 2,500 m / s, exceptional peaks above 4,000 m / s. Simon Scherrer, Armin Petrascheck, Hanspeter Hode, Extreme Hochwasser des Rheins bei Basel -- Herleitung von Szenarien ( 2006 ). ^ Jump up to : `` Maps of Switzerland -- Swiss Confederation -- GEWISS '' ( online map ). High Rhine. Gewässernetz 1 : 2 Mio. National Map 1 : 2 Mio ( in German ). Cartography by Swiss Federal Office of Topography swisstopo. Berne, Switzerland : Federal Office for the Environment FOEN. 2014. Retrieved 2016 - 01 - 05 -- via http://map.geo.admin.ch. Jump up ^ ( ( in English ) Atlas der Schweiz Switzerland maps by Swiss Federal Office of Topography Jump up ^ ( ( in English ) Hiking Switzerland on Senda Sursilvana along young Rhine Jump up ^ National Map of Switzerland, Sheet 1232 `` Oberalppass '', 1 : 25 000, Federal Office of Topography, 2005 Edition Jump up ^ Swiss Rhine long - distance trail Senda Sursilvana in Graubünden Jump up ^ Cioc, Mark. The Rhine : an eco-biography, 1815 -- 2000. Seattle : University of Washington Press. 48 -- 49 Jump up ^ Cioc, Mark. The Rhine : an eco-biography, 1815 -- 2000. Seattle : University of Washington Press. 2002. 52 Jump up ^ Cioc, Mark. The Rhine : an eco-biography, 1815 -- 2000. Seattle : University of Washington Press. 2002. 53 Jump up ^ Cioc, Mark. The Rhine : an eco-biography, 1815 -- 2000. Seattle : University of Washington Press. 2002. 54 Jump up ^ Cioc, Mark. The Rhine : an eco-biography, 1815 -- 2000. Seattle : University of Washington Press. 2002 : 54 Jump up ^ Cioc, Mark. The Rhine : an eco-biography, 1815 -- 2000. Seattle : University of Washington Press. 2002 : 56 Jump up ^ Tockner, K ; Uehlinger, U ; Robinson, CT ; Siber, R ; Tonolla, D ; Peter, FD ( 2009 ). `` European Rivers '' ( PDF ). In Lekens, Gene E. Encyclopedia of Inland Waters. 3. Elsevier. pp. 366 -- 377. ISBN 978 - 0 - 12 - 370626 - 3. ^ Jump up to : Berendsen and Stouthamer ( 2001 ) Jump up ^ Ménot et al. ( 2006 ) Jump up ^ Cohen et al. ( 2002 ) Jump up ^ Hoffmann et al. ( 2007 ) Jump up ^ Gouw and Erkens ( 2007 ) Bibliography Berendsen, Henk J.A. ; Stouthamer, Esther ( 2001 ). Palaeogeographic Development of the Rhine - Meuse Delta, The Netherlands. Assen : Koninklijke Van Gorcum. ISBN 90 - 232 - 3695 - 5. OCLC 495447524. Blackbourn, David ( 2006 ). The Conquest of Nature : Water, Landscape, and the Making of Modern Germany. London : Jonathan Cape. ISBN 0 - 224 - 06071 - 6. OCLC 224244112. Cohen, K.M. ; Stouthamer, E. ; Berendsen, H.J.A. ( February 2002 ). `` Fluvial Deposits As a Record for Late Quaternary Neotectonic Activity in the Rhine - Meuse Delta, The Netherlands '' ( PDF ). Netherlands Journal of Geosciences -- Geologie en Mijnbouw. 81 ( 3 -- 4 ) : 389 -- 405. ISSN 0016 - 7746. Frijters, Ine D. ; Leentvaar, Jan ( 2003 ). Rhine Case Study ( PDF ). Technical documents in hydrology, no. 17. Paris : UNESCO International Hydrological Programme, ( Rep. No. SC / 2003 / WS / 54 ). OCLC 55974122. Gouw, M.J.P. ; Erkens, G. ( March 2007 ). `` Architecture of the Holocene Rhine - Meuse delta ( the Netherlands ) -- A result of changing external controls ''. Netherlands Journal of Geosciences -- Geologie en Mijnbouw. 86 ( 1 ) : 23 -- 54. ISSN 0016 - 7746. Hoffmann, T. ; Erkens, G. ; Cohen, K. ; Houben, P. ; Seidel, J. ; Dikau, R. ( 2007 ). `` Holocene Floodplain Sediment Storage and Hillslope Erosion Within the Rhine Catchment ''. The Holocene. 17 ( 1 ) : 105 -- 118. doi : 10.1177 / 0959683607073287. Ménot, Guillemette ; Bard, Edouard ; Rostek, Frauke ; Weijers, Johan W.H. ; Hopmans, Ellen C. ; Schouten, Stefan ; Sinninghe Damsté, Jaap S. ( 15 September 2006 ). `` Early Reactivation of European Rivers During the Last Deglaciation ''. Science. 313 ( 5793 ) : 1623 -- 1625. PMID 16973877. doi : 10.1126 / science. 1130511. `` Rhine River History ''. Encyclopædia Britannica. Encyclopædia Britannica Online. 2010. Retrieved 29 March 2010. Roll, Mitch ( 2009 ). `` Rhine River History and Maps ''. The ROLL `` FAME '' Family. Retrieved 29 March 2010. External links Rhine with maps and details of navigation through the French section ; places, ports and moorings, by the author of Inland Waterways of France, Imray Navigation details for 80 French rivers and canals ( French waterways website section ) Tributaries of the Rhine Left ( western ) Vorderrhein Aua Russein Schmuèr Alpine Rhine Vorderrhein Tamina Rietaach Alter Rhein Freibach Lake Constance Goldach High Rhine Thur Töss Glatt Aare Sissle Ergolz Birs Birsig Upper Rhine Ill Moder Sauer Lauter Spiegelbach Queich Speyerbach Rehbach Isenach Eckbach Eisbach Pfrimm Selz Middle Rhine Nahe Moselle Nette Brohlbach Ahr Lower Rhine Erft Right ( eastern ) Vorderrhein Rein da Tuma Rein da Curnera Rein da Medel Rein da Sumvitg Glogn Rabiusa Hinterrhein Ragn da Ferrera Albula / Alvra Alpine Rhine Hinterrhein Plessur Landquart Mülbach Ill Frutz Lake Constance Dornbirner Ach Bregenzer Ach Leiblach Schussen Rotach Brunnisaach Lipbach Seefelder Aach Stockacher Aach Radolfzeller Aach High Rhine Biber Wutach Alb Murg Wehra Upper Rhine Wiese Elz Kinzig Rench Acher Murg Alb Pfinz Saalbach Kraichbach Leimbach Neckar Weschnitz Modau Main Middle Rhine Wisper Lahn Wied Lower Rhine Sieg Wupper Düssel Ruhr Emscher Lippe IJssel Oude IJssel / Issel Berkel Schipbeek Rhine -- Meuse -- Scheldt delta Rhine Rijn Rhin Current distributaries Waal Nederrijn IJssel Lek Merwede Boven Merwede Nieuwe Merwede Beneden Merwede Oude Maas Dordtsche Kil Noord Nieuwe Maas Het Scheur Nieuwe Waterweg Former distributaries Kromme Rijn Leidse Rijn Oude Rijn Hollandse IJssel Vecht Waaltje Brielse Maas Spui Current estuaries Nieuwe Waterweg IJsselmeer Former estuaries Hollands Diep Haringvliet Volkerak Krammer Grevelingen Keeten - Mastgat Oosterschelde Associated canals Bijlands Kanaal Pannerdens Kanaal Amsterdam -- Rhine Canal Vaartse Rijn Nieuwe Merwede Nieuwe Waterweg Scheldt -- Rhine Canal Maas -- Waal Canal Meuse Maas Current distributaries Bergse Maas Amer Former distributaries Oude Maasje Afgedamde Maas Merwede Boven Merwede Beneden Merwede Oude Maas Dordtsche Kil Noord Nieuwe Maas Het Scheur Nieuwe Waterweg Current estuaries Former estuaries Hollands Diep Haringvliet Volkerak Krammer Grevelingen Keeten - Mastgat Oosterschelde Associated canals Heusden Canal Bergse Maas Maas -- Waal Canal Scheldt Schelde Escaut Current distributaries Western Scheldt Former distributaries Oosterschelde Eendracht Current estuaries Western Scheldt Former estuaries Oosterschelde Krammer Grevelingen Associated canals Scheldt -- Rhine Canal Canal through Walcheren Other rivers ( directly draining into the delta ) Linge Mark Donge Rotte Oude IJssel Islands and Peninsulas Rozenburg IJsselmonde Het Eiland van Dordt Voorne and Putten Hoeksche Waard Tiengemeten Goeree - Overflakkee Schouwen - Duiveland Tholen Sint Philipsland Walcheren Noord - Beveland Zuid - Beveland Towns Rotterdam Antwerp Dordrecht Bergen - op - Zoom Schiedam Vlissingen Vlaardingen Middelburg Spijkenisse Other topics Delta Works Verdronken Land van Reimerswaal Verdronken Land van Saeftinghe St. Elizabeth 's flood ( 1421 ) St. Felix 's Flood All Saints ' Flood ( 1570 ) VIAF : 3145602320301361474 LCCN : sh85113657 GND : 4049739 - 2 BNF : cb11949068g ( data ) HDS : 8768 NDL : 00629394 Retrieved from `` https://en.wikipedia.org/w/index.php?title=Rhine&oldid=800997841 '' Categories : Rhine Rhine basin International rivers of Europe Rivers of Austria Rivers of France Rivers of Liechtenstein Rivers of Switzerland Border rivers Austria -- Switzerland border France -- Germany border Germany -- Switzerland border Graubünden -- St. Gallen border Liechtenstein -- Switzerland border Geography of Central Europe Geography of Western Europe Rifts and grabens Rivers of Baden - Württemberg Rivers of North Rhine - Westphalia Rivers of Rhineland - Palatinate Federal waterways in Germany Rivers of Alsace Rivers of Gelderland Rivers of Utrecht ( province ) Rivers of South Holland Rivers of Overijssel Rivers of the Netherlands Rivers of Bas - Rhin Hidden categories : CS1 German - language sources ( de ) All articles with specifically marked weasel - worded phrases Articles with specifically marked weasel - worded phrases from October 2014 Articles containing Ancient Greek - language text Articles containing Alemannic - language text Pages with citations lacking titles Pages with citations having bare URLs CS1 French - language sources ( fr ) Articles containing Old English - language text Use dmy dates from May 2011 Articles containing Latin - language text Articles containing Romansh - language text Articles containing German - language text Articles containing French - language text Articles containing Dutch - language text Wikipedia type : river page with obscure country or subdivision Coordinates on Wikidata Geobox usage tracking for river type Articles containing Gaulish - 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Question: where does the river rhine start and finish
Answer: begins in the Swiss canton of Graubünden in the southeastern Swiss Alps