1. Rivers of South America
Name of Length/ Source/Mouth Countries in Major cities along Remarks
the River which the river
flowing
Amazon Length: 6800 km Brazil Manaus is the largest •2nd longest river in the world
Peru city along the R. •Largest river in the world according
Source: Mt. Mismi in Colombia Amazon (Brazil) to discharge
Southern Peru (also •Largest drainage basin the world
known as Nevado Mismi) •Important tributaries are Branco, Rio
Negro, Japura, Apurimac, Madeira,
Mouth: Atlantic Ocean Pastaza, Napo, Putumayo, Tapajos,
Xingu etc.
•Largest tributary is R. Madeira
Orinoco Length: 2140 km Venezuela Ciudad Bolivar in • Amazon River Dolphin and Orinoco
Colombia Venezuela Piranha can be found in this river.
Source: W. slopes of the • Orinoco Crocodile is also found in
Parima Mountains along the river.
the border between •There is a natural canal called
Venezuela and Brazil. Casiquiare Canal which joins the Rio
Negro river, a tributary of Amazon.
Mouth: Atlantic Ocean •Important tributaries of the river
are Apure, Caroni, Meta, Caura,
Arauca etc.
•Volume wise it is the world’s third
largest river.
Parana Length: 1090 km Brazil (In Argentina) • Important tributaries is R. Salado
Paraguay Rosario, Santa Fe, •It is the second longest South
Source: it is formed by the Argentina Parana, Resistencia, American River
union of two rivers, Corrientes • The Itaipu Dam on this river is the
Paranaiba River & Grande world’s second largest HEP power
River both occurring in (In Brazil) station in the world.
Brazil. Sao Paulo, • For a certain stretch the river forms
Santos, Araguari the natural boundary between
Mouth: Atlantic Ocean Paraguay & Argentina
(Rio de la Plata)
Paraguay Length: 2621 km Paraguay (In Paraguay) • Important shipping corridor for the
Brazil Asuncion Concepcion land locked countries like Bolivia &
Source: Mato Grosso Argentina (In Argentina) Paraguay.
Region (Brazil) Bolivia Formosa • There are no dams or HEP projects
located on the rivers.
Mouth: falls into R. Parana •Fishing is an important economic
activity done in this river.
• The main tributaries are Pilcomayo,
Apa, Negro, Barmejo & Miranda.
Rio de la Length: 290 km Argentina Buenos Aires • It is an estuary where fresh water
Plata Uruguay and saline water get mixed
Source: confluence of • The La Plata drainage basin is the
Paraná & Paraguay river continent’s second largest drainage
basin after Amazon
Mouth: South Atlantic • Main tributaries are Uruguay,
Ocean Paraguay and Parana.
•Most of the population of Argentina
& Uruguay are found around this
river.

2. Magdalena Length: 1540 km Colombia Neiva • Main river of Colombia
Honda •Main tributaries are San Jorge, Cesar
Source: Colombian Massif El Dorado & Cauca
Girardot
Mouth: Atlantic ocean Puerto Boyacá
Sao Length: 2830 km Brazil Pirapora • Discovered by Amerigo Vespucci
Francisco Bom Jesus da Lapa • Main tributaries are Grande,
Source: Canastra Mt. Sao Francisco Paraopeba, Paracatu, Corrente etc
Range (Brazil) Juazeizo • Sobradinho reservoir is located on
Petrolina this river which is one of the largest
Mouth: Atlantic Ocean artificial lakes in the world.
Tocantins Length: 2640 km Brazil • The main tributary is Araguaia. The
other tributaries are Rio das Mortes,
Source: Pirenues district Paranatinga, Maranhao etc.
of Brazil •The famous Tucurui HEP project in
Brazil is located on this river.
Mouth: Atlantic Ocean
Rivers of North America
Name of Length/ Remarks
the Source/Mouth
River
St. Length: 1197 km • Forms a part of boundary between
Lawrence USA & Canada
Source: L. Ontario • It consists of several lakes, islands
and manmade canals
Mouth: Atlantic
• It is the main drainage of the Great
Ocean (Gulf of St.
Lake Region
Lawrence)
• It connects the Great Lake region
with Atlantic Ocean
• It falls into the Gulf of St, Lawrence,
which is considered as the world’s
Rivers of South America
largest estuary.
• It is the 2nd largest river of Canada
•The main tributaries of the river are
Ottawa, Saguenay, Manicouagan,
Saint-Maurice etc.
• It is an important route of USA-
Canada trade.
• The main cities found along the
river are Quebec City, Montreal,
Cornwall, Brokeville, Cape Vincent
(New York) etc.

3. Name of the Length/Source/Mouth Remarks
River
Mackenzie Length: 4241 km • It is the largest and longest river of Canada
Source: Great Slave Lake • some important tributaries of the river are Kakisa, Jean Marie,
in Canada (NW Territories) Liard, Arctic Red River, Great Bear, Peel, Athabasca, Peace etc
Mouth: Arctic Ocean • The river is navigable in summer and rest of the year it is used as
(Beaufort Sea) frozen roads.
• The main cities found along this river are Fort Simpson, Fort Good
Hope & Inuvik.
• It terms of discharge is ranks second in the continent and fourth in
the world.
Yukon Length: 3187 km • The important tributaries of the river are Teslin, Pelly, Takhini,
Source: Llewellyn Glacier, Porcupine, Stewart etc.
British Columbia, Canada • Fishing is an important activity in this river. It is well know for
Mouth: Berring Sea fishing of Salmon.
• It is one of the largest salmon reserves of the world.
• Important towns found along the river are Fort Yukon, Circle,
Dawson, Whitehorse, Carmacks etc.
Churchill Length: 1609 km • The main tributary of the river is Beaver River
Source: Churchill Lake, • Churchill in Manitoba is the largest city located along the river. It is
Saskatchewan, Canada known as the ‘Polar Bear capital of the World’.
Mouth: Hudson Bay • Large-scale Fishing is done in this river.
Fraser Length: 1375 km • The main tributaries of the river are Pitt, Harrison, Thompson, Stein,
Source: Canadian Rockies, Robson, Moose, Nechako, Brunette etc
British Columbia, Canada • A 270 km long canyon has been curved by the river, which is known
Mouth: Strait of Georgia, as Fraser Canyon.
Vancouver, Canada •Moran Canyon Dam project has been proposed on this river.
• The main cities along this river are Chilliwack, Abbotsford & New
Westminster

4. Columbia Length: 2000 km • Important tributaries of this river are Beaver, Snake, kettle,
Source: Columbia Lake, Okanogan, Yakima, and Spillimacheen etc.
British Columbia, Canada • There is a Columbia River Treaty between US & Canada for the
Mouth: Pacific Ocean successful flood control & maximization if HEP generation
• Some cities located along the river are Northport, Bridgeport,
Arlington, Roosevelt, Lyle, Columbia City, Prescott etc.
• The Grand Coulee Dam on this river is the largest electric power
producing facility in USA. The Dam is a product of Columbia Basin
Project.
• Fishing is an important economic activity in this river.
Colorado Length: 2334 km • Some important tributaries of the river are Green River, San Juan
Source: Rocky Mountain River, Paria River, Little Colorado, Virgin River etc.
National Park, Colorado, USA • Hoover Dam, Parker Dam, Davis Dam & Glen Canyon Dam are the
Mouth: Gulf of California two important dam situated across the river.
• The important cities located along the river are Page, Moab,
Boulder City, Glenwood Springs, Yuma, Las Vegas, McCoy etc.
• From its source to the Confluence of Green river it is known as
Grand River.
• The city of Moab in the north bank of the river is known for its
Uranium reserve.
Rio Grande Length: 3051 km • A part of this river forms the natural boundary between US &
Source: San Juan Mountain, Mexico.
Colorado, USA • The important tributaries are San Juan River, Pecos, Rio Chama, Rio
Mouth: Gulf of Mexico Conchos, Rio Salado etc.
• The cities located along the river are Nuevo Laredo, El Paso,
Laredo, Juarez etc
Mississippi Length: 3734 km • Largest river system of the continent.
Source: L. Itasca, Minnesota, • Important tributaries are Arkansas, Red River, Ohio, & Missouri etc.
USA • Important cities located along the river are Baton Rouge, Memphis,
Mouth: Gulf of Mexico Cape Girardeau, Hannibal, Minneapolis & Rock Island.
Tributaries of Missouri • It rises from the Centennial Mountains, Montana, USA
Mississippi River • It is 3767 km long.
• The important cities located along the river are Bismarck, Omaha,
Kansas City, St. Louis, Great Fall etc.
• Longest tributary of Mississippi, (even longer than Mississippi)
Ohio • Largest tributary of Mississippi.
• The cities of Pittsburgh, Cincinnati, New Albany, Henderson,
Petersburg are situated along this river
• The source of the river is the Allegheny River in Pennsylvania.
• It is 1579 km long.
Arkansas • 2nd longest tributary of Mississippi River
• Rises from the Rocky Mountain, Colorado, USA
•It is 2350 km long
• Important cities located along the river are Tulsa, Little Rock, Pine
Bluff, Pueblo etc.
Red river • It rises from the state of Oklahoma.
• It is 2189 km long
• Elmer, Denison, Texarkana are the main cities located along the
river.