Its total length from its source to its junction with theRhine comprises about 295 kilometres (183 mi),[3][5] during which distance it descends 1,565 m (5,135 ft), draining an area of 17,779 km2 (6,865 sq mi), almost entirely within Switzerland, and accounting for close to half the area of the country, including all ofCentral Switzerland.[5]
Right afterInnertkirchen it is joined by its first major tributary, the Gamderwasser. Less than 1 kilometre (0.62 mi) later the river carves through alimestone ridge in theAare Gorge (German:Aareschlucht).[3] It is here that the Aare proves itself to be more than just a river, as it attracts thousands of tourists annually to the causeways through the gorge.[4] A little pastMeiringen, nearBrienz, the river expands intoLake Brienz. Near the west end of the lake it indirectly receives its first importanttributary, theLütschine, by the Lake of Brienz. It then runs across the swampy plain of the Bödeli (Swiss German diminutive for ground) betweenInterlaken andUnterseen before flowing intoLake Thun.[3]
Near the west end of Lake Thun, the river indirectly receives the waters of theKander, which has just been joined by theSimme, by the Lake of Thun. Lake Thun marks thehead of navigation.[6] On flowing out of the lake it passes throughThun, and then flows through the city ofBern, passing beneatheighteen bridges and around the steeply-flanked peninsula on which theOld City is located. To the south of the Old City peninsula is theMattenschwelle [de], aweir which provides water for the small Mattehydroelectric power plant.River swimming in the Aare is popular in Bern, and the river is sometimes full of bathers on summer days. The river soon changes its northwesterly flow for a due westerly direction, but after receiving theSaane or La Sarine it turns north until it nearsAarberg. There, in one of the major Swiss engineering feats of the 19th century, theJura water correction, the river, which had previously rendered the countryside north of Bern aswampland through frequent flooding, was diverted by the Aare-Hagneck Canal into theLac de Bienne. From the upper end of the lake, atNidau, the river issues through theNidau-Büren Canal, also called the Aare Canal,[4] and then runs east toBüren. The lake absorbs huge amounts of eroded gravel and snowmelt that the river brings from the Alps, and the former swamps have become fruitful plains: they are known as the "vegetable garden of Switzerland".
From here the Aare flows northeast for a long distance, past the ambassador townSolothurn[3] (below which the GrosseEmme flows in on the right),Aarburg (where it is joined by theWigger),Olten,Aarau,[3] near which is the junction with theSuhre, and Wildegg, where the SeetalAabach falls in on the right. A short distance further, belowBrugg, it receives first theReuss, its major tributary, and shortly afterwards theLimmat, its second strongest tributary. It now turns due north, and soon becomes itself a tributary of theRhine, which it even surpasses in volume when the two rivers unite downstream fromKoblenz (Switzerland), oppositeWaldshut in Germany. The Rhine, in turn, empties into theNorth Sea after crossing into theNetherlands.
Aare inBernOld bridge at Wangen an der AareAt the "Wasserschloss", where the rivers Aare, Reuss and Limmat flow togetherThe convergence of the Aare and the Rhine at Koblenz
On May 26, 2022, IndonesiaWest Java GovernorRidwan Kamil's eldest child, Emmeril Kahn Mumtadz,[12] was declared missing after being swept away by the river current. Chronologically, Eril was swimming in the river with his sister and friends.[13] When he wanted to rise to the surface, Eril was dragged by a fairly swift current of the river which had previously received help from his friend.[14] The search efforts involving the police search and rescue team, maritime police, fire department, and authority of the city of Bern.[12] One week after declared missing, Emmeril Kahn Mumtadz was declareddeadin absentia at the age of 22.[15] Although on June 9, 2022, Eril's body was located.[16] The funeral procession of Emmeril “Eril” Kahn Mumtadz took place in the family's burial ground located in Cimaung, Bandung regency, West Java.[17] Soon after news about Eril's body brought back to his home, Indonesian netizensreview bombed Aare River's Google listing, leaving negative comments and one-star ratings as if the waterway was fully to blame for the tragedy.[18]
Anon (1973).Atlas Routier et Touristique (in French). Paris, France: Bordas-Tirade.
Bridgwater, W.; Aldrich, Beatrice, eds. (1968). "Aare".The Columbia-Viking Desk Encyclopedia (3rd ed.). New York, NY: Columbia University Press.ISBN978-0670230709.
Cohen, Saul B., ed. (1998). "Aare".The Columbia Gazetteer of the World. New York, NY: Columbia University Press.ISBN0-231-11040-5.
Kristol, Andres; Cattin, Florence; Meroni, Barbara; Schmid, Gabrielle, eds. (2005). "Aarau AG (Aarau)" [Encyclopedia of the Swiss municipality of LSG: Dictionnaire de toponymique scommunes Suisses DTS / Dizionario dei comuni toponomastico svizzeri DTS].Lexikon der schweizerischen Gemeindenamen LSG: Dictionnaire toponymique de scommunes suisses DTS /Dizionario toponomastico dei comuni svizzeri DTS (in German) (1st ed.). Stuttgart, Germany: Huber Frauenfeld.ISBN3-7193-1308-5.