Major Rivers Knowledge Quiz – Test the Details

This major rivers knowledge quiz follows America's great waterways, from the Mississippi and Missouri to the Colorado, the Columbia and the Rio Grande. Ten questions test the details.

Start Major Rivers Knowledge Quiz

🎯 Daily Trivia Challenge • 🧠 10 Questions • ⏱️ 150 Seconds

Question 1 / 10 Time: 150s

Length
What is the longest river in the United States?
Source
The Mississippi River begins at which lake in Minnesota?
Canyons
Which river carved the Grand Canyon?
Borders
Which river forms much of the border between Texas and Mexico?
Northwest
Which river forms most of the border between Washington and Oregon?
History
Lewis and Clark traveled up which river at the start of their 1804 expedition?
East
New York City sits at the mouth of which river?
Capitals
Washington, D.C., lies on which river?
Alaska
Which major river flows across Alaska to the Bering Sea?
Confluences
The Ohio River joins the Mississippi at which town?

Explanations: answer key for all 10 questions

Q1: What is the longest river in the United States?
Answer: Missouri River
The Missouri runs about 3,770 kilometers from Montana to its meeting with the Mississippi near St. Louis, slightly longer than the Mississippi itself.
Q2: The Mississippi River begins at which lake in Minnesota?
Answer: Lake Itasca
At Lake Itasca, visitors can walk across the young Mississippi on stepping stones. From there it travels about 3,730 kilometers to the Gulf of Mexico.
Q3: Which river carved the Grand Canyon?
Answer: Colorado River
The Colorado River cut the Grand Canyon over about 5 to 6 million years. The canyon reaches more than 1.8 kilometers deep.
Q4: Which river forms much of the border between Texas and Mexico?
Answer: Rio Grande
The Rio Grande runs about 3,000 kilometers. In Mexico it is called the Río Bravo del Norte.
Q5: Which river forms most of the border between Washington and Oregon?
Answer: Columbia River
The Columbia produces more hydroelectric power than any other North American river, through dams such as Grand Coulee and Bonneville.
Q6: Lewis and Clark traveled up which river at the start of their 1804 expedition?
Answer: Missouri River
The Corps of Discovery left the St. Louis area in May 1804 and pushed up the Missouri toward the Rocky Mountains.
Q7: New York City sits at the mouth of which river?
Answer: Hudson River
The Hudson flows about 507 kilometers from the Adirondack Mountains. Its lower section is a tidal estuary, so seawater reaches far upstream.
Q8: Washington, D.C., lies on which river?
Answer: Potomac River
The Potomac forms part of the border between Maryland and Virginia and flows past the National Mall into Chesapeake Bay.
Q9: Which major river flows across Alaska to the Bering Sea?
Answer: Yukon River
The Yukon begins in British Columbia and flows about 3,190 kilometers through Canada and Alaska. Salmon swim almost its whole length to spawn.
Q10: The Ohio River joins the Mississippi at which town?
Answer: Cairo, Illinois
At Cairo, Illinois, the Ohio actually carries more water than the upper Mississippi, nearly doubling the river's flow.

Major Rivers Knowledge Quiz – Rivers That Built a Nation

Before railroads, rivers were America's highways. Fur traders, settlers and steamboats followed the Mississippi, Ohio and Missouri, and cities such as St. Louis, New Orleans, Cincinnati and Pittsburgh grew where rivers met or reached the sea.

Today the Mississippi basin drains all or part of 31 states and two Canadian provinces, about 40 percent of the continental US. Western rivers like the Colorado and Columbia are heavily dammed, supplying water and electricity to millions of people.

What This Quiz Teaches

Useful for geography students and travelers, this quiz connects each river with the cities, borders and history along its banks.

Why the Missouri is longer than the Mississippi
Which river carved the Grand Canyon
Which rivers form state and national borders
Where Lewis and Clark began their journey
Where the Ohio meets the Mississippi

Did You Know?

The Mississippi and Missouri together form one of the longest river systems in the world.
The Chicago River was reversed in 1900 so it flows away from Lake Michigan.
The Colorado River often no longer reaches the sea because so much water is used.
Mark Twain took his pen name from a Mississippi riverboat depth call.
The Hudson River was named after explorer Henry Hudson, who sailed it in 1609.