Ask the Chatbot Games & Quizzes ProCon History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture Money Videos
Ou River
Table of Contents
Introduction References & Edit History Related Topics
Images
Ou River
Quizzes
water glass on white background. (drink; clear; clean water; liquid)
Water and its Varying Forms
Read Next
Aerial view of the Amazon River in the Amazon rainforest near Manaus in Brazil. South America
How Long Is the Amazon River?
Discover
Woman tied to a ducking stool, a method of punishment by means of humiliation, beating, or death. (cucking stool)
8 Unusual Punishments Inflicted on Women Throughout History
Mayer Amschel Rothschild (1744-1855), founder of the house of Rothschild; lithograph by Friedrich Lieder, c. 1830.
Where Do Anti-Semitic Conspiracy Theories About the Rothschild Family Come From?
Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society
12 Novels Considered the “Greatest Book Ever Written”
Rural Irish landscape, Sligo, Ireland.
Why Is Ireland Two Countries?
Los Angeles Police Department wanted flyer on Elizabeth Short, aka the "Black Dahlia," who was brutally murdered in January 1947. The FBI supported the Los Angeles Police Department in the case, including by identifying Short through her fingerprints that
America’s 5 Most Notorious Cold Cases (Including One You May Have Thought Was Already Solved)
Iraqi Army Soldiers from the 9th Mechanized Division learning to operate and maintain M1A1 Abrams Main Battle Tanks at Besmaya Combat Training Center, Baghdad, Iraq, 2011. Military training. Iraq war. U.S. Army
8 Deadliest Wars of the 21st Century
The Cheshire Cat is a fictional cat from Lewis Carroll's Alice's Adventures in Wonderland. (Alice in Wonderland)
11 Banned Books Through Time
Ou River
Ou River Ou River, northern Laos.

Ou River

river, Laos
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies. Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style
Share
Share to social media
URL
https://www.britannica.com/place/Ou-River-Laos
Feedback
Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login).
Thank you for your feedback

Our editors will review what you’ve submitted and determine whether to revise the article.

External Websites
Also known as: Nam Ou
Written and fact-checked by
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
The Editors of Encyclopaedia Britannica
Article History
Laotian:
Nam Ou
See all related content

Ou River, river in northern Laos, one of the 12 principal tributaries of the Mekong River; it is 236 miles (380 km) long. The Ou River rises on the Chinese frontier north of Muang Ou Nua and flows south and southwest through the gorges and mountain valleys of the northernmost part of Laos before joining the Mekong at Ban Pak Ou, 15 miles (24 km) above Louangphrabang town. The Ou is navigable as far north as Hatsa, just northeast of Phôngsali town. The lower Ou River valley, supporting a Lao rice culture, also carries a part of the road linking northern Vietnam with the Mekong River valley.

This article was most recently revised and updated by Amy Tikkanen.