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List of longest rivers of the United States (by main stem) - Wikipedia ...

en.wikipedia.org/wiki/List_of_longest_rivers_of_the_United_States_(by_main_stem)

The main stems of 38 rivers in the United States are at least 500 miles (800 km) long. The main stem is "the primary downstream segment of a river, ...

Lengths of major rivers - Water Resources of the United States - U.S. ...

water.usgs.gov/edu/riversofworld.html

May 2, 2016 ... Take a look at a map of the United States or of any country in the world. ... River lengths or river-length data are affected not only by some of the ...

What is the longest river in North America? | Reference.com

www.reference.com/geography/longest-river-north-america-b49b3d237457c598

Running between the state of Missouri and its source in Montana, the longest river in North America is the Missouri River. The river flows 2341 miles until it ...

10 Longest Rivers in the United States - United States & Canada

united-states-canada.knoji.com/10-longest-rivers-in-the-united-states/

Feb 15, 2011 ... These are the ten longest rivers in the United States as measured by the USGS. Most people would guess that the Mississippi River is the ...

The 35 longest rivers in the USA - Experience - USA Today

experience.usatoday.com/america/story/road-trips/2014/10/28/35-longest-rivers-in-usa/18071867/

Oct 28, 2014 ... Wade through America's winding waterways to find out which is the longest.

The Missouri is America's Longest River - VOA

learningenglish.voanews.com/a/the-missouri-is-americas-longest-river/1567374.html

Dec 18, 2012 ... Sometimes called 'The Big Muddy,' the river winds several thousand kilometers across the northern United States | EXPLORATIONS.

What is the longest river in the United States? - FunTrivia.com

www.funtrivia.com/askft/Question21841.html

Gnomon says: Mississippi/Missouri. The Mississippi on its own is not the longest. The normal naming convention for rivers is that the longest tributary is called ...

What is the longest river in the United States? What are some ...

www.quora.com/What-is-the-longest-river-in-the-United-States-What-are-some-interesting-facts-about-it

The longest river in the USA is the Missouri River, stretching around 2,340 miles ( 3,770 km) in ...

What are the longest rivers in North America, and where are they ...

www.quora.com/What-are-the-longest-rivers-in-North-America-and-where-are-they-located

The answer is well known, but is not as easy to explain as one would expect. From Wikipedia: For the purpose of determining maximum length a river's "true ...

Longest Rivers In The United States - WorldAtlas.com

www.worldatlas.com/articles/longest-rivers-in-the-united-states.html

Sep 1, 2016 ... The US with the sheer size has a diverse geography. It is home to some of the world's longest rivers, which flow between several states.

Answer
The longest river in the United States is the Missouri River at 2,540 miles.
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Longest Rivers in USA - World Map

www.mapsofworld.com

Jul 21, 2016 ... USA Map showing the name and path of the Longest Rivers in USA. Missouri, Mississippi, Yukon, Rio Grande, St. Lawrence, Arkansas, ...

What is the longest river in the United States? | Reference.com

www.reference.com

The Missouri River is the longest river in the United States at 2341 miles long. The Mississippi River is the second longest, at 2340 miles long. The longest rivers ...

The Longest River In The U.S. Is Being Altered By Climate Change

thinkprogress.org

Aug 18, 2014 ... Climate change is altering the flow of the Missouri River, the nation's ... while in western states like Montana and Wyoming, streamflow has ...