The Reno () is a river of

Emilia-Romagna egl, Emigliàn (man) egl, Emiglièna (woman) rgn, Rumagnòl (man) rgn, Rumagnòla (woman) it, Emiliano (man) it, Emiliana (woman) or it, Romagnolo (man) it, Romagnola (woman) , population_note = , population_blank1_title ...

, northern

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical re ...

. It is the tenth longest river in Italy (the sixth longest of those that flow directly into the sea) and the most important of the region apart from the Po. It has a

drainage basin A drainage basin is an area of land where all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, t ...

of about .Reno Basin Authority The annual average discharge at the mouth is about ; at the point the river start to flow in the

Pianura Padana The Po Valley, Po Plain, Plain of the Po, or Padan Plain ( it, Pianura Padana , or ''Val Padana'') is a major geographical feature of Northern Italy. It extends approximately in an east-west direction, with an area of including its Venetic ex ...

(Po River Plain), it amounts to about . The highest values registered at the mouth have approached , but the typical value when the river is in flood is around . The minimal discharge reported is . The river rises in the Le Lari massif of the

province of Pistoia The province of Pistoia ( it, provincia di Pistoia) is a province in the Tuscany region of central Italy. Its capital is the city of Pistoia and the province is landlocked. It has an area of and a total population of 291,788 inhabitants (as of 2 ...

(

Tuscany Tuscany ( ; it, Toscana ) is a Regions of Italy, region in central Italy with an area of about and a population of about 3.8 million inhabitants. The regional capital is Florence (''Firenze''). Tuscany is known for its landscapes, history, art ...

) at about above sea level, from two streams that join near Le Piastre, in the ''

comune The (; plural: ) is a local administrative division of Italy, roughly equivalent to a township or municipality. It is the third-level administrative division of Italy, after regions ('' regioni'') and provinces (''province''). The can also ...

'' of

Pistoia Pistoia (, is a city and ''comune'' in the Italian region of Tuscany, the capital of a province of the same name, located about west and north of Florence and is crossed by the Ombrone Pistoiese, a tributary of the River Arno. It is a typi ...

. Its upper course marks the border between Tuscany and Emilia-Romagna and flows in a wooded area crossed by the Bologna-Porretta-Pistoia railway line (inaugurated in 1864 and one of the most outstanding for the time as for engineering effort). The upper course is characterized by several artificial reservoirs whose dams are used for

hydro-electric Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined an ...

energy production. The power produced in the basin of the Reno basin is second, for Apennine rivers, only to that of the

Nera Nera may refer to: People * Nera Smajic (born 1984), Bosnian-born Swedish footballer * Nera Stipičević (born 1983), Croatian actress * Nera White (1935–2016), American basketball player * André António Ribeiro Novais (born 1988), Portugue ...

Velino The Velino is a river in central Italy, a tributary of the Nera. Its source is located on Monte Pozzoni's slopes (1,903 m) near Cittareale. Aftwards it runs through a narrow valley next the Mount Terminillo, known as "Gole del Vento" ("Wind' ...

Umbria it, Umbro (man) it, Umbra (woman) , population_note = , population_blank1_title = , population_blank1 = , demographics_type1 = , demographics1_footnotes = , demographics1_title1 = , demographics1_info1 = , ...

. It passes west of

Bologna Bologna (, , ; egl, label= Emilian, Bulåggna ; lat, Bononia) is the capital and largest city of the Emilia-Romagna region in Northern Italy. It is the seventh most populous city in Italy with about 400,000 inhabitants and 150 different nat ...

, at

Casalecchio di Reno Casalecchio di Reno ( Bolognese: ) is a town and ''comune'' in the Metropolitan City of Bologna, Emilia-Romagna, northern Italy. History Casalecchio's name is derived from ''Casaliculum'' ("collection of little houses"), and from the presence of ...

. In its lower course the Reno receives the water of numerous streams, some of which are seasonal. The most important include the

Limentra orientale The Limentra orientale (also: ''Limentra di Treppio'') is a mountain river in Italy, a right tributary of the Reno. It rises from Monte la Croce in the Apennine Mountains. It enters the Metropolitan City of Bologna near Lentula and Treppio. Near ...

Silla Silla or Shilla (57 BCE – 935 CE) ( , Old Korean: Syera, Old Japanese: Siraki2) was a Korean kingdom located on the southern and central parts of the Korean Peninsula. Silla, along with Baekje and Goguryeo, formed the Three Kingdoms of K ...

, Setta,

Samoggia The Samoggia is a river in the Emilia-Romagna region of Italy. The source of the river is in the province of Modena near Zocca. The river flows northeast into the Metropolitan City of Bologna and flows near Bazzano, Crespellano, Piumazzo, Anz ...

Idice The Idice is a river in the Tuscany and Emilia-Romagna regions of Italy. The source of the river is in the province of Florence near Monghidoro in the Appennino Tosco-Emiliano mountains. The river flows north into the province of Bologna near M ...

Sillaro The Sillaro (Latin ''Silarus,'' Emilian ''Sàrrel,'' Romagnol ''Sélar'') is a long Italian stream, whose headwaters are by the village of Piancaldoli (Firenzuola, province of Florence), in Tuscany. It runs northeast through the city of Castel S ...

Santerno The Santerno is a river in Romagna in northern Italy. It is a major tributary of the river Reno. In Roman times, it was known as the ''Vatrenus'' (small ''Renus''), although, in the Tabula Peutingeriana, it was already identified as the ''Santer ...

and

Senio The Senio is a river of Romagna in Italy, the final right-sided tributary of the river Reno. The source of the river is in the province of Florence in the Appennino Tosco-Emiliano mountains. The river flows northeast into the province of Ravenna ...

. The Reno was a tributary of the Po until the middle of the 18th century when the course was diverted to lessen the risk of devastating floods. It now joins the

Adriatic Sea The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkan Peninsula. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Sea) to t ...

near Casalborsetti, south-east of the

Valli di Comacchio The Valli di Comacchio, meaning "fish basins of Comacchio", are a series of contiguous brackish lagoons situated to the south of Comacchio, close to the Adriatic coast of the Emilia-Romagna region in northern Italy. They lie within the comuni of ...

. The name of the river has the same etymology as the name of the

Rhine ), Surselva, Graubünden, Switzerland , source1_coordinates= , source1_elevation = , source2 = Rein Posteriur/Hinterrhein , source2_location = Paradies Glacier, Graubünden, Switzerland , source2_coordinates= , so ...

, as both derive from the same Celtic hydronym *''Rēnos'', the Reno basin being situated within

Gallia Cisalpina Cisalpine Gaul ( la, Gallia Cisalpina, also called ''Gallia Citerior'' or ''Gallia Togata'') was the part of Italy inhabited by Celts (Gauls) during the 4th and 3rd centuries BC. After its conquest by the Roman Republic in the 200s BC it was con ...

, in what was the territory of

Boii The Boii (Latin plural, singular ''Boius''; grc, Βόιοι) were a Celtic tribe of the later Iron Age, attested at various times in Cisalpine Gaul (Northern Italy), Pannonia (Hungary), parts of Bavaria, in and around Bohemia (after whom the ...

before the Roman conquest of 220 BC. In

Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...

both rivers are called ''Reno'', and in

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

both were called ''Rhenus''. In 43 BC the pact establishing the

Second triumvirate The Second Triumvirate was an extraordinary commission and magistracy created for Mark Antony, Marcus Aemilius Lepidus, and Octavian to give them practically absolute power. It was formally constituted by law on 27 November 43 BC with a ...

was signed on an islet of the river near ''Bononia'' (Bologna). The river is mentioned by

Dante Alighieri Dante Alighieri (; – 14 September 1321), probably baptized Durante di Alighiero degli Alighieri and often referred to as Dante (, ), was an Italian poet, writer and philosopher. His ''Divine Comedy'', originally called (modern Italian: '' ...

in Canto XVIII of his ''

Inferno Inferno may refer to: * Hell, an afterlife place of suffering * Conflagration, a large uncontrolled fire Film * ''L'Inferno'', a 1911 Italian film * Inferno (1953 film), ''Inferno'' (1953 film), a film noir by Roy Ward Baker * Inferno (1973 fi ...

'' where he defines the Bolognesi as those "living between the

Savena The Savena ( egl, label= Bolognese, Sèvna) is a river in the Tuscany and Emilia-Romagna regions of Italy. The source of the river is in the province of Florence west of Firenzuola in the Appennino Tosco-Emiliano mountains. The river flows north ...

and the Reno". Topografia e idrografia del Reno 1732

Footnotes

External links

Historical and geographical info
{{Coord missing, Italy Rivers of Italy Rivers of the Province of Ferrara Rivers of the Province of Pistoia Rivers of the Province of Bologna Rivers of the Apennines