62-595: Haus Carstanjen is a castle on the River Rhine in Plittersdorf, Bad Godesberg , a district of Bonn , Germany . The original building dates back to 1716. In 1881 Wilhelm Adolf von Carstanjen (1825–1900, ennobled 1881) acquired the building which he rebuilt into its present classical castle form. After 1950 it was occupied by the German Federal Government. From 1950 until 1957 it housed
124-413: A 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 floods. Not long before Tulla went to work on widening and straightening the river, heavy floods caused significant loss of life. Four diplomatic treaties were signed among German state governments and French regions dealing with
186-671: A predominantly westerly direction and flows into the Netherlands where it eventually empties into the North Sea . It drains an area of 9,973 km . Its name derives from the Celtic Rēnos . There are two German states named after the river, North Rhine-Westphalia and Rhineland-Palatinate , in addition to several districts (e.g. Rhein-Sieg ). The departments of Bas-Rhin and Haut-Rhin in Alsace (France) are also named after
248-506: A seven-story block, and a detached restaurant. The modern office buildings are of reinforced concrete frame construction, extensively glazed with steel sun blinds, connected by glazed steel walkways. Wilhelm Adolf von Carstanjen was born on 24 October 1825 in Duisburg , to a wealthy tobacco dealer, trader and shipper. In 1849 he moved to Cologne where he set up a cane sugar refinery with other family members. His business merged with that of
310-640: A waterway in the Holy Roman Empire . Among the largest and most important cities on the Rhine are Cologne , Rotterdam , Düsseldorf , Duisburg , Strasbourg , Arnhem , and Basel . The variants of the name of the Rhine (Latin Rhenus; French Rhin, Italian Reno, Romansh Rain or Rein, Dutch Rijn, Alemannic Ry, Ripuarian Rhing) in modern languages are all derived from the Gaulish name Rēnos , which
372-747: Is a Central German development of the early modern period , with the Alemannic name R(n) keeping the older vocalism. In Alemannic, the deletion of the ending -n in pausa is a recent development; the form Rn is largely preserved in Lucernese dialects. Rhing in Ripuarian is diphthongized, as is Rhei, Rhoi in Palatine . While Spanish has adopted the Germanic vocalism Rin- , Italian, Occitan, and Portuguese have retained
434-710: Is here defined as from the Kara Sea , along the Ural Mountains and Ural River to the Caspian Sea . While the crest of the Caucasus Mountains is the geographical border with Asia in the south, Georgia , and to a lesser extent Armenia and Azerbaijan , are politically and culturally often associated with Europe; rivers in these countries are therefore included. The list is at the outset limited to those rivers that are at least 250 km long from
496-786: Is one of the major European rivers . The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps . It forms the Swiss-Liechtenstein border and partly the Swiss-Austrian and Swiss-German borders. After that the Rhine defines much of the Franco-German border , after which it flows in a mostly northerly direction through the German Rhineland . Finally in Germany, the Rhine turns into
558-597: Is significantly shortened from its natural course due to a number of canal 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 kilometers (766 miles) by the Dutch Rijkswaterstaat in 2010. Its course is conventionally divided as follows: The Rhine carries its name without distinctive accessories only from
620-784: Is sometimes called Rhinesee ("Lake Rhine"). Besides the Seerhein , the Radolfzeller Aach is the main tributary of Untersee . It adds large amounts of water from the Danube system to the Untersee via the Danube Sinkhole . Reichenau Island was formed at the same time as the Seerhein, when the water level fell to its current level. Lake Untersee is part of the border between Switzerland and Germany , with Germany on
682-643: 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 comprised much of the Roman Empire 's northern inland boundary , and the Rhine has been a vital navigable waterway bringing trade and goods deep inland since those days. The various castles and defenses built along it attest to its prominence as
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#1732764882538744-526: The Aare . The Aare more than doubles the Rhine's water discharge, to an average of slightly more than 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 . Between Eglisau and Basel , the vast majority of its length,
806-665: The Anterior Rhine and the Posterior Rhine join and form the Alpine 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 meters to 396 meters. It flows through a wide glacial Alpine valley known as the Rhine Valley ( German : Rheintal ). Near Sargan a natural dam, only a few meters high, prevents it from flowing into
868-815: 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. 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
930-617: The North Channel , respectively. Finally, rivers draining into the Caspian Sea are listed from Azerbaijan to the Ural River. The table can be sorted by each column. The first three columns give a ranking for (maximum) length, area and volume of those rivers flowing into the sea or an endorheic lake down to the cut-off values. No ranking of tributaries is attempted, as the concept is too contentious; for example, hydrologically
992-457: The Obersee with the 30 cm lower Untersee . Distance markers along the Rhine measure the distance from the bridge in the old city center of Konstanz. For most of its length, the Seerhein forms the border between Germany and Switzerland. The exception is the old city center of Konstanz, on the Swiss side of the river. The Seerhein emerged in the last thousands of years, when erosion caused
1054-701: The Rhine knee , 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,
1116-400: The Rhine knee , the river turns north and leaves Switzerland altogether. The High Rhine is characterized by numerous dams. On the few remaining natural sections, there are still several rapids . Over its entire course from Lake Constance to the Swiss border at Basel the river descends from 395 m to 252 m. In the center of Basel, the first major city in the course of the stream, is
1178-805: The Siret in Romania and Ukraine is 726 km long with a basin of 44,000 km according to the Great Soviet Encyclopedia , 647 km (44,811 km ) according to a Romanian management plan for the Siret basin and 559 km (47,610 km ) according to the extensive transboundary rivers study by the Economic Commission for Europe . Length estimates for rivers depend on a number of variables: The catchment areas are more consistent between sources. However, in low relief
1240-750: 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. The culminating point of the Anterior Rhine's drainage basin is the Piz Russein of the Tödi massif of the Glarus Alps at 3,613 meters (11,854 ft) above sea level. It starts with
1302-680: The confluence of the Rein Anteriur/Vorderrhein and Rein Posteriur/Hinterrhein next to Reichenau in Tamins . Above this point is the extensive catchment area of the headwaters of the Rhine. This area belongs almost exclusively to the Swiss canton of Grisons ( Graubünden ), ranging from Saint-Gotthard Massif in the west via one valley lying in the canton of Ticino and Sondrio ( Lombardy , Italy) in
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#17327648825381364-516: 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,
1426-614: The Anterior Rhine and the Rhine as a whole. The Posterior Rhine rises in the Rheinwald below the Rheinwaldhorn . The source of the river is generally considered north of Lai da Tuma/Tomasee on Rein Anteriur/Vorderrhein , although its southern tributary Rein da Medel is actually longer before its confluence with the Anterior Rhine near Disentis . The Anterior Rhine arises from numerous source streams in
1488-521: 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 . The flow of cold, grey mountain water continues for some distance into the lake. The cold water flows near
1550-888: The Bundesministerium für Angelegenheiten des Marshallplanes (the Federal Ministry for the Marshall Plan ), from 1957 until its dissolution in 1969 the Bundesschatzministerium (Treasury) and, until 1999, the Bundesministerium der Finanzen (Federal Ministry of Finance). In the 1970s the Carstanjen family sold the grounds to the Federal government, including what is now the Rheinauen Park, and more buildings were built. At this time
1612-480: The High Rhine forms the border between Germany and Switzerland . Only for brief distances at its extremities does the river run entirely within Switzerland; at the eastern end it separates the bulk of the canton of Schaffhausen and the German exclave of Büsingen am Hochrhein on the northern bank from cantons of Zürich and Thurgau , while at the western end it bisects the canton of Basel-Stadt . Here, at
1674-663: 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, French, Spanish and Italian. The Old English river name
1736-875: The Posterior Rhine 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 . Numerous larger and smaller tributary rivers bear the name of the Rhine or equivalent in various Romansh idioms, including Rein or Ragn , including: Next to Reichenau in Tamins
1798-453: The Rhine into Lake Constance forms an inland delta . The delta is delimited in the west by the Alter Rhein and in the east by the modern canalized section of the Alpine Rhine ( Fußacher Durchstich ). 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
1860-579: The UN organisations relocated to a new campus in the renovated Langer Eugen tower, leaving the UNFCCC secretariat resident in Haus Carstanjen. In November 2015, the German Federal Government welcomed the United Nations System Staff College - Knowledge Centre for Sustainable Development in Haus Carstanjen. The original castle consists of an angular, Neo-Gothic three-story building, with two circular turrets , roofed conically in grey slate, mullioned windows , and colonnaded galleries. A new extension, dating from 1967, consists of two low detached blocks and
1922-442: The area around the river was made more habitable for humans on flood plains as the rate of 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 has undergone significant human change since
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1984-404: 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
2046-420: 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
2108-603: 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 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
2170-477: The country alongside the industrial revolution. For the German state, making 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". List of rivers of Europe This article lists the principal rivers of Europe with their main tributaries. The border of Europe and Asia
2232-415: The creek Aua da Russein (lit.: "Water of the Russein"). In its lower course, the Anterior Rhine flows through a gorge named Ruinaulta (Flims Rockslide). The whole stretch of the Anterior Rhine to the Alpine Rhine confluence next to Reichenau in Tamins is accompanied by a long-distance hiking trail called Senda Sursilvana . The Posterior Rhine flows first east-northeast, then north. It flows through
2294-784: The farm into a residential castle, which he named Haus Carstanjan. However, at that time he moved with his family to Berlin , and the Haus was only occasionally used. He commissioned a classical mausoleum between 1894 and 1896 on the grounds of the Plittersdorf estate, where he was interred after his death on 24 June 1900. Carstanjen was a skilled collector and filled his residences in Cologne, Bad Godesberg, Plittersdorf and Berlin with Old Masters by Frans Hals , Rembrandt van Rijn , Aelbert Cuyp , and with antique furniture, wall tapestries, arms and armour, which his agents sourced from across Germany and auctions in Paris and London. On his death some of his art collection found its way to museums in Berlin and Cologne. Adolf and Adele had three children,
2356-444: 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 – over three million cubic meters (110,000,000 cu ft) annually. In
2418-416: The goal of shortening and straightening the Upper Rhine. 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 eased flooding and made transportation along the river less cumbersome. These state projects were part of the advanced and technical progress going on in
2480-410: The grounds took on the nickname 'Schiller Park', after the former federal finance minister and house Mr. Karl Schiller . Starting in 1996, after German reunification , many government ministries moved to Berlin , and the offices at Haus Carstanjen were assigned to United Nations agencies . The federal government renovated the complex at a cost of seven million euros. From the summer of 2006 many of
2542-418: The lake level to be lowered by about 10 meters. Previously, the two lakes formed a single lake, as the name still suggests. 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,
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2604-439: The lengths. Underestimates are most common, as the gauging stations are often far above the mouth, so that only a fraction of the drainage basin is represented. On the other hand, the highest volume of a river may not be at the mouth due to water loss by human usage, diversion (e.g. through distributaries ), evaporation, or underground drainage. The longest rivers in Europe with their approximate lengths (incomplete list): This
2666-413: The lists of rivers for individual countries linked to at the bottom of the page for smaller rivers. The rivers are ordered from those flowing to the extreme northeast into the Arctic Ocean, following the coastline anticlockwise all the way to the southeastern coast of the Black Sea. Iceland and the British Islands are included via virtual connections with northern Norway and across the Strait of Dover and
2728-482: 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. 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
2790-458: The middle and upper Volga could be considered a tributary of the Kama , in which case it would be the fifth or sixth longest river in Europe. Instead it does not appear in the table at all. The commercial and geopolitical importance of rivers is not ranked here. As a transportation artery, a river may unite a region commercially and economically, but major rivers, as barriers to travel, may also form political boundaries between states. The Danube ,
2852-427: The most distant source, have a drainage basin (catchment area, watershed) of at least 10,000 km (3,900 sq mi), or have a mean discharge (volume, flow) of at least 150 m /s (5,300 cu ft/s). Also included are a number of rivers (currently 47) that do not meet these criteria, but are very well known and/or nearly make the mark. Examples of these are the Arno , Ruhr , Saar , and Clyde . See
2914-444: 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. The Seerhein is only 4 kilometers (2.5 mi) long. It connects
2976-459: 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. The High Rhine ( Hochrhein ) begins in Stein am Rhein at the western end of the Untersee. Now flowing generally westwards, it passes over the Rhine Falls ( Rheinfall ) below Schaffhausen before being joined – near Koblenz in the canton of Aargau – by its major tributary,
3038-506: The open Sztal valley and then through Lake Walen and Lake Zurich into the Aare . The Alpine Rhine begins in the westernmost 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 called Alter Rhein ( lit. ' Old Rhine ' ). The mouth of
3100-424: 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
3162-406: The river. Some adjacent towns are named after it, such as Rheinau , Rheineck , Rheinfelden (CH) and Rheinfelden (D). The International Commission for the Hydrology of the Rhine Basin (CHR) and EUWID contend that the river could experience a massive decrease in volume, or even dry up completely in case of drought, within the next 30 to 80 years, as a result of the climate crisis . The Rhine
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#17327648825383224-635: The second longest river in Europe, is notable for flowing through or past ten countries; the Rhine through or past six. The Volga , the longest river in Europe, unites a huge region of European Russia; eleven of the twenty largest cities in Russia lie on its banks. The Loire and the Po unite important regions within France and Italy respectively. The most important rivers in Europe include Rhone , Elbe , Oder , Tagus , Thames , Don and Dnieper , among others. The measurements shown are drawn from sources deemed most reliable, but still are often uncertain, especially when other sources disagree wildly. For example,
3286-399: The south to the Flüela Pass in the east. The Rhine is one of four major rivers taking their source in the Gotthard region, along with the Ticino (drainage basin of the Po ), Rhône and Reuss (Rhine basin). The Witenwasserenstock is the triple watershed between the Rhine, Rhône and Po. Traditionally, Lake Toma near the Oberalp Pass in the Gotthard region is seen as the source of
3348-412: The surface and at first does not 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
3410-400: 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
3472-400: The upper Surselva and flows in an easterly direction. One source is Lai da Tuma (2,345 m (7,694 ft)) 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 Rein da Medel , the Rein da Maighels , and the Rein da Curnera . The Cadlimo Valley in
3534-402: The vom Rath family in 1855, and then Carl Joest & Sons, and he took a seat on the board of the resulting "Rhine Sugar Production Company", a position cemented by his marriage to Adele Adolf Carstanjen vom Rath. He supported Kaiser Wilhelm I during the Franco-Prussian War , and received into the Prussian nobility in 1881. In 1881 he bought farmland by the Rhine near Plittersdorf and rebuilt
3596-524: The watershed is less obvious, while underground connections (especially in karst systems) further complicate area measurements. Unless excellent sources are available, the areas below 70°N latitude are taken from the HydroBASINS project. The River Networks and Ramsar Sites Information Service websites provide convenient interfaces to assess the accuracy of many of the basins. Areas for rivers above 70°N are warned and found to be less reliable. The listed multiyear mean discharges are even less reliable than
3658-521: The youngest son, Robert, published a family chronicle in 1934. To the south of Haus Carstanjen, facing the River Rhine is the Carstanjen family mausoleum . It takes the form of a large rotunda , similar to a small pantheon in the style of ancient Rome , with a domed roof over several floors of rich internal and external decoration. 50°42′16″N 7°09′47″E / 50.70444°N 7.16306°E / 50.70444; 7.16306 River Rhine The Rhine ( / r aɪ n / RYNE )
3720-637: Was adapted in Roman-era geography (1st century BC) as Latin Rhenus , and as Greek Ῥῆνος ( Rhēnos ). 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 vocalization -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 modern German diphthong Rhein (also used in Romansh ) Rein, Rain
3782-417: Was dug. It was made navigable to the Swiss town of Rheineck . 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 ,
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#17327648825383844-415: Was variously inflected as masculine or feminine; and its Old Icelandic adoption was inflected as feminine. The length of the Rhine is conventionally measured in "Rhine-kilometers" ( Rheinkilometer ), a scale introduced in 1939 which runs from the 0 km datum at Old Rhine Bridge in the city of Konstanz , at the western end of Lake Constance , to the Hook of Holland at 1,036.20 km. The river
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