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The Paraná River is a major South American waterway that flows approximately 4,880 kilometers through Brazil, Paraguay, and Argentina. It merges with the Uruguay River to form the Río de la Plata before emptying into the Atlantic Ocean. The river basin is a crucial navigation route for commercial sh...

The Rhône River is a major waterway in southern Europe that rises in the Swiss Alps and flows west and south through France before reaching the Mediterranean Sea. It is approximately 812 kilometers (505 miles) long, making it one of the largest rivers in Europe. The river is heavily utilized for hyd...

The Baker River is a major river in Chilean Patagonia that flows through the Aysén Region to the Pacific Ocean. It is fed by the outflow of General Carrera Lake, the second-largest lake in South America, via Bertrand Lake. With a length of approximately 170 kilometers, it is the largest river in Chi...

The Lancang River is the Chinese portion of the Mekong, one of the major rivers of Asia. It originates on the Tibetan Plateau in Qinghai Province and flows approximately 2,161 kilometers through the Tibet Autonomous Region and Yunnan Province before entering Southeast Asia. After leaving China, the...

The Omo River is a major river in southwestern Ethiopia that flows approximately 760 kilometers southward from the Ethiopian Highlands to empty into Lake Turkana on the border with Kenya. The lower Omo Valley is a UNESCO World Heritage Site recognized for significant paleontological discoveries, inc...

The São Francisco River is one of the longest rivers in Brazil, flowing approximately 2,830 kilometers entirely within the country's territory. It originates in the Canastra mountain range in Minas Gerais and flows north through Bahia before turning east through Pernambuco and Sergipe to reach the A...

The Angara is a river in Siberia approximately 1,779 kilometres long and the only outflow from Lake Baikal. It flows northwest from the lake through Irkutsk Oblast to join the Yenisei near Strelka. The river's course includes the Irkutsk, Bratsk, and Ust-Ilimsk hydroelectric dams, which form some of...

The Klamath River runs for roughly 420 kilometres from southern Oregon through northern California before reaching the Pacific Ocean. Its basin supports salmon and other migratory fish that have long held economic and cultural importance for Indigenous peoples, including the Yurok, Karuk, and Klamat...

The Inn is a 517-kilometer-long alpine river that begins in the Swiss Alps before flowing northeast through the Austrian state of Tyrol. It passes directly through the city of Innsbruck, serving as a defining geographical feature of the valley. Continuing into Germany, the river eventually converges...

The Kura River is the longest watercourse in the South Caucasus, measuring approximately 1,515 kilometers. It originates in the highlands of northeastern Turkey and flows eastward through Georgia and Azerbaijan. The river eventually empties into the Caspian Sea south of Baku. It serves as a vital re...

The Karun River is a major watercourse in southwestern Iran, extending roughly 950 kilometers in length. It is distinguished as Iran's only commercially navigable river. The river originates in the Zagros Mountains and flows southwesterly before joining the Shatt al-Arab waterway near the Persian Gu...

The Kafue River is a major tributary of the Zambezi River and the longest river located entirely within Zambia, measuring approximately 1,576 kilometers. It flows south and east through diverse landscapes, including Kafue National Park, which is one of the largest wildlife reserves in Africa. The ri...

Shivanasamudra Falls is a segmented waterfall system on the Kaveri River in Karnataka, India. The river divides around the island of Shivanasamudra and descends through the Gaganachukki and Bharachukki branches, with volume changing substantially between wet and dry seasons. The area is also associa...

The Biobío River is a major river of south-central Chile, flowing from the Andes westward to the Pacific Ocean near Concepción. It has been extensively used for hydroelectric generation and supports agriculture, settlements, and industry within its basin. Historically, the river marked an important...

The Sakarya River is a major Turkish river approximately 824 kilometers long, flowing from the Bayat Plateau in central Anatolia westward and then northward to the Black Sea. It is the third-longest river flowing entirely within Turkey and passes through the provinces of Ankara, Eskişehir, and Sakar...

The Acheloos River is a 220-kilometer watercourse in western Greece and the longest river entirely within the country's borders. Originating in the Pindus mountain range, it flows southward through the Agrafa and Aetolia-Acarnania regions before emptying into the Ionian Sea, forming an extensive del...

The Rioni River is a major watercourse in Georgia, extending approximately 327 kilometers from the Caucasus Mountains to the Black Sea. It flows through the ancient region of Colchis, an area famously associated with the Greek myth of the Golden Fleece. The river passes through the city of Kutaisi b...

The Cuanza River, also spelled Kwanza, spans approximately 960 kilometers and is the longest river located entirely within Angola. It originates on the central Bié Plateau and flows westward, eventually emptying into the Atlantic Ocean just south of the capital, Luanda. The river is economically vit...

The Naryn River is the longest river in Kyrgyzstan, extending approximately 807 kilometers. It flows westward through the Tian Shan mountains before joining the Kara Darya in Uzbekistan to form the Syr Darya, one of Central Asia's major waterways. The river is heavily dammed, most notably by the Tok...

The Narva River is a 77-kilometer waterway that flows from Lake Peipus northward into the Gulf of Finland, serving as a natural border between Estonia and Russia. It is geographically and culturally significant for the opposing medieval fortresses of Narva and Ivangorod situated along its banks. The...

The Nelson River is a 644-kilometer waterway in the Canadian province of Manitoba that drains Lake Winnipeg northward into Hudson Bay. It is a crucial component of the province's power infrastructure, supporting multiple large-scale hydroelectric dams along its course, including the Kettle, Long Spr...

The Vakhsh River is a major river of Tajikistan and one of the two principal headstreams that form the Amu Darya. Approximately 524 kilometres long, it drains mountainous terrain and is extensively used for hydroelectric generation and irrigation. The river passes through the Nurek Dam, an earth-fil...

Klarälven is a river of Norway and Sweden that rises in the Norwegian mountain region, where its upper course is called the Trysilelva. It flows south into Sweden through Värmland and empties into Lake Vänern at Karlstad, after a combined course of roughly 460 kilometres. The river is used for hydro...

The Dong Nai River flows for about 586 kilometers through Vietnam's Central Highlands and southeastern region before joining the Saigon River system and reaching the sea through the Soai Rap estuary. Its basin is the largest river basin located entirely within Vietnam and supports municipal water su...

The Mur is a river of central Europe that rises in Austria's Hohe Tauern mountains and flows through Austria, Slovenia, Croatia, and along part of the Croatian-Hungarian border. Its course is roughly 450 kilometres long and passes through Graz before joining the Drava. The river supports hydroelectr...

The Pangani River is a major river of northeastern Tanzania, formed within a drainage system fed by waters from the Kilimanjaro and Mount Meru regions. It flows southeast through the Pangani basin and reaches the Indian Ocean near the town of Pangani. Its water is used for irrigation, municipal supp...

The Maule River is a major river of central Chile that rises in the Andes, crosses the Maule Region, and empties into the Pacific Ocean. Its basin supports irrigated agriculture and contains reservoirs and hydroelectric facilities that contribute to Chile's water and electricity systems. The river a...

The Vuoksi is a river system that carries water from Lake Saimaa in southeastern Finland to Lake Ladoga in Russia. Its course passes through a heavily modified landscape containing channels, rapids, dams, and hydroelectric stations, including facilities near Imatra. The river has also been shaped by...

The Seyhan River is a major watercourse in southern Turkey that flows for approximately 560 kilometers. It originates in the Taurus Mountains and runs southwest through the major city of Adana before reaching the Mediterranean Sea. The river is heavily utilized for regional agricultural irrigation a...