Rivers

The Lambro ( or Lambar ) is a river of Lombardy, northern Italy, a left tributary of the Po.

The Osyotr () is a river in Tula and Moscow Oblasts in Russia, a right tributary of the Oka. The length of the river is . The area of its basin is . The Osyotr freezes up in November and stays icebound until the first half of April. The town of Zaraysk is located on the Osyotr River.

thumb|right|300px|Course of the Nederrijn

The Spercheios (, Sperkheiós), also known as the Spercheus from its Latin name, is a river in Phthiotis in central Greece. It is long, and its drainage area is . It was worshipped as a god in the ancient Greek religion and appears in some collections of Greek mythology. In antiquity, its upper valley was known as Ainis. In AD 997, its valley was the site of the Battle of Spercheios, which ended Bulgarian incursions into the Byzantine Empire.

The Laborec (; ) is a river in eastern Slovakia that flows through the districts of Medzilaborce, Humenné, and Michalovce in the Košice Region, and the Prešov Region. The river drains the Laborec Highlands. It is long and its basin size is .

Gudbrandsdalslågen or simply Lågen is a river which flows through the Gudbrandsdalen valley in Innlandet county, Norway. The long river runs through a large valley in Eastern Norway before emptying into Mjøsa, the largest lake in Norway. The river flows through the municipalities of Lesja, Dovre, Sel, Nord-Fron, Sør-Fron, Ringebu, Øyer, and Lillehammer.

The Ombrone (Latin: Umbro) is a river situated in the provinces of Grosseto and Siena, central Italy.

river in Chelyabinsk Oblast and Bashkiria, Russia

The Minija is a river in western Lithuania and a right tributary to the Nemunas. It is long. It begins from small Lake Didovas, and hydrographically from lake Sydeklis, 14 km south of Telšiai. The rivulet that flows out of Sydeklis here is called Mava, in between Lake Ilgis and Lake Pluotinalis - Kliurkė and only after Lake Didovo it gets the Minija name.

tributary of the Marañón River in Ecuador and Peru

The Vazuza (), a river in the Novoduginsky and Sychyovsky districts of Smolensk Oblast and in the Zubtsovsky District of Tver Oblast, Russia, becomes a right tributary of the Volga. It is long, and its drainage basin covers . Soviet engineers flooded the lower part of the river to form the Vazuza Reservoir. The towns of Sychyovka and Zubtsov are located on the banks the Vazuza (the latter at its confluence with the Volga). The main tributaries of the Vazuza are the Kasnya, the Gzhat (both right), the Losmina and the Osuga (left).

Bregalnica (, ) is the second largest river in North Macedonia. It starts as a spring near the mountain city of Pehchevo and it passes through Berovo, Delchevo, near the cities of Makedonska Kamenica, Kočani, Vinica and Štip, before joining the river Vardar on its way to the Aegean Sea. Recent issues have concentrated around the pollution of the river, as many of the factories located in the cities through which it passes used it as a dumping ground for waste waters, which is further aggravated with the pesticide-treated waters of the extensive rice fields near the city of Kočani. It was the p

thumb|right|Ounasjoki in wintertime The Ounasjoki () is the Kemijoki's largest tributary and is Finland's longest single river tributary. It is also the largest river entirely within its borders. Ounasjoki is approximately in length, and the catchment area is , 27% of the Kemijoki catchment area.

river in Spain

The Kasplya (Belarusian and ) is a river in Smolensky, Demidovsky, and Rudnyansky Districts of Smolensk Oblast of Russia and in Vitebsk Region of northern Belarus. It is a major left-bank tributary of the Daugava. Of its total length of , the first are in Russia, and the rest in Belarus. It joins the Daugava in the urban-type settlement of Surazh. The town of Demidov is situated on the Kasplya.

The Mūša (; ) is a river in Northern Lithuania and Southern Latvia (Zemgale region). At its confluence with the river Nemunėlis () in Latvia, near the city of Bauska, the river Lielupė is formed. The river is long, with in Lithuania and in Latvia.

river in eastern Pennsylvania, United States

river in France

river in Kazakhstan

The Serchio (; ) is the third longest river in the Italian region of Tuscany at , coming after the Arno at and the Ombrone, . By mean rate of flow, it is the second largest, smaller than Arno but larger than Ombrone.

The Loisach () is a river that flows through Tyrol, Austria and Bavaria, Germany. The Loisach runs through the great moors and

The Ilet (; ; ) is a river in Mari El, Russia. It is long, and has a drainage basin of . Major tributaries are the Ashit, Yushut, Voncha and Petyalka. Minimum mineralization is 1000–1400 mg/L. Tourism and rafting are popular.

The Blanda () is a river in Iceland which flows northwards from the northwest side of the Hofsjökull glacier into Húnaflói bay at Blönduós. The Blanda is one of the longest rivers in the country, with a length of about 125 km, and has a catchment area estimated at 2370 km2. Its source is calculated to lie at a height of 800m. The river is one of the main salmon rivers in Iceland and has often yielded a catch of almost 3000 salmon in one summer. Before the river was dammed in 1990, the salmon spawning grounds reached almost to the foot of the glacier. Blanda hydroelectric power statio

thumb|The Crati at its confluence with the Busento river near the center of Cosenza The Crati is a river in Calabria, southern Italy. It is the largest river of Calabria and the third largest river of southern Italy after the Volturno and the Sele. In classical antiquity it was known as the Crathis or Crater (Greek: ).

The Arroux () is a river in central France. It is a right tributary of the Loire. It is long. Its source is east of Arnay-le-Duc, in Côte-d'Or. The Arroux flows generally south through the following departments and towns:

river in Argentina

river in Kenya

river in northern Israel

river in Vladimir, Moscow, and Tver Oblasts, Russia

river in Karachay-Cherkessia and Krasnodar Krai, Russia

river in South Yorkshire, England

river in Mongolia and Russia

river in Brunei

river in Tver Oblast, Russia

river in Sverdlovsk Oblast, Russia

river in Alberta and Saskatchewan, Canada

river in Khanty-Mansi Autonomous Okrug, Russia, tributary to the Irtysh

river in İzmir, western Turkey

river in Yamalo-Nenets and Khanty-Mansi AOs, Russia

river in Ukraine

river in Ecuador

river in Zabaykalsky Krai, Russia

river in Komi and Nenets AO, Russia

river in Murmansk Oblast, Russia

river in Georgia and Russia

The Oredezh () is a river in Volosovsky, Gatchinsky, and Luzhsky Districts in the south-western part of Leningrad Oblast, Russia, a right tributary of the Luga. The length of the river is , whereas the area of its drainage basin is . The principal tributary of the Oredezh is the Suyda (left). A cascade of hydroelectric plants was constructed on the upper course of the river in 1948.

river in Papua Province, Indonesia

river in Romania

river in Guyana

thumb|River Sesia in Borgosesia, Piemonte, Italy The Sesia (Latin Sesites or Sessites) is a river in Piedmont, north-western Italy, tributary to the Po.

The Poronay (, ) is the longest river on the island of Sakhalin in Russia. It flows in a southerly direction through Tym, Smirnykhovsky and Poronaysky Districts.

river draining Lake Superior into Lake Huron in North America

The Kotorosl () is a right tributary of the Volga in Yaroslavl Oblast, Russia. The river flows from Lake Nero near Rostov past Karabikha and enters the Volga in Yaroslavl. It is long, and has a drainage basin of .

or is one of the longest rivers in Trøndelag county, in the central part of Norway. The long river flows through the municipalities of Røyrvik, Namsskogan, Grong, Overhalla, and Namsos before emptying into the Namsenfjorden. The river is the namesake for the whole Namdalen region. The river traditionally has been used for floating timber down from the forests to the town of Namsos, where the sawmills were located. Today, parts of the Namsen are regulated by several dams.

river in Saratov and Volgograd Oblasts, Russia, tributary of Don

river in Belarus and Russia

The Pronya () is a river in the Ryazan and Tula oblasts in Russia. It is a right tributary of the Oka. The length of the river is . The area of its basin is . The river freezes up in late November and stays icebound until early March. The Pronya is navigable in its lower reaches. The town of Mikhaylov is located on the Pronya.

river in Montenegro and Albania

The Emscher () is a river, a tributary of the Rhine, that flows through the Ruhr area in North Rhine-Westphalia in western Germany. Its overall length is with a mean outflow near the mouth into the lower Rhine of .

river in Thailand