US Major Rivers Quiz
Mississippi, Missouri, Colorado, Columbia, Rio Grande (10 questions).
US Major Rivers Quiz: Quick Study Notes
Explore the waterways that define the North American landscape. From the mighty Mississippi to the canyon-carving Colorado, these rivers are central to the geography and history of the United States.
Forms the largest drainage basin in the US, flowing south from Minnesota to the Gulf of Mexico.
The longest river in North America, rising in the Rockies and flowing east to join the Mississippi.
Known for carving the Grand Canyon and providing essential water to the arid Southwest.
The primary river of the Pacific Northwest, famous for its massive hydroelectric power generation.
Key Takeaways
- The Missouri is the longest river, while the Mississippi carries the most water.
- The Rio Grande serves as a natural international border between Texas and Mexico.
- The Colorado River is heavily dammed (e.g., Hoover Dam) to sustain cities like Las Vegas and Phoenix.
- The Columbia River empties into the Pacific Ocean and forms the WA-OR border.
- These river systems provide crucial irrigation, transportation routes, and hydroelectric energy.
Frequently Asked Questions
What is the longest river in the United States?
The Missouri River is the longest, stretching approximately 2,341 miles, slightly longer than the Mississippi River.
Which river forms the border between the US and Mexico?
The Rio Grande forms the border between the state of Texas and Mexico.
Where does the Mississippi River empty?
The Mississippi River flows south and empties into the Gulf of Mexico, creating a massive delta region.
Which river runs through the Grand Canyon?
The Colorado River carved the Grand Canyon over millions of years.
What is the largest river in the Pacific Northwest?
The Columbia River is the largest in the region by discharge and forms much of the border between Washington and Oregon.

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