Europe’s castle river still starts in a Swiss alpine canton
The Rhine rises in Graubünden’s Alps, brushes Liechtenstein and Austria, then sketches Swiss–German and Franco–German borders before crossing the Netherlands to the North Sea. About 1,230 kilometres long with a 185,000-square-kilometre basin and roughly 2,900 cubic metres per second of discharge, it is Central and Western Europe’s second-longest river after the Danube.
The river boasts Europe’s most powerful waterfall, the Rhine Falls. Romans treated it and the Danube as the empire’s inland northern frontier, and its castles still recall the traffic of the Holy Roman Empire. As of 2026 a fleet of some 6,900 vessels worked its waters.
Distances along it are counted in Rhine-kilometres, a scale introduced in 1939 that starts at zero at the Old Rhine Bridge in Konstanz, at the western end of Lake Constance, and ends at the Hook of Holland at 1,036.20. Canal schemes of the nineteenth and twentieth centuries shortened the natural channel considerably, so a total including the lake and the Alpine Rhine is hard to pin down; the Dutch Rijkswaterstaat gave 1,232 kilometres in 2010.
The name began as Gaulish Rēnos, from a root meaning to flow, and passed into Latin as Rhenus and Greek as Rhēnos. Germanic speakers borrowed it as *Rīnaz, which produced Old English Rín, Old High German Rīn and early Middle Dutch Rijn. The initial Rh- in English Rhine, German Rhein and French Rhin reflects Greek spelling conventions, not pronunciation.
Standard German’s diphthong in Rhein arose in Central German during the early modern period, while Alemannic dialects keep the older vowel in Rhi or Rhin, the full form surviving around Lucerne. Spanish follows the Germanic Rin-, whereas Italian, Occitan and Portuguese retain the Latin Ren-. The Celtic, Greek and Latin forms were masculine, and the river stays masculine in German, Dutch, French, Spanish and Italian, though Old English wavered and Old Icelandic treated it as feminine.
Source: Rhine
