Search Results | columbia river
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Gigantic Undiscovered Cave Found in British Columbia
How, in today's world, could a cave this massive go undetected for so long?
What Is the World’s Shortest River?
science.howstuffworks.com/environmental/earth/oceanography/worlds-shortest-river.htm
Ever wondered what's the difference between a river, a stream, a brook and a tributary?
Major Rivers Trivia Quiz
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Whether or not you get these questions right, "old man river keeps rolling along!" Do you know as much as you think you do about the world's biggest rivers? Put your knowledge to the test and see how well you do!
10 Longest Rivers in the U.S.: From the Missouri to the Brazos
science.howstuffworks.com/environmental/earth/geophysics/longest-river-in-the-us.htm
We bet you're looking up the longest river in the U.S. to settle a bet: Is it the Missouri River or the Mississippi River? It depends how you measure.
The Ultimate Portland Quiz
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With its snow-capped mountains and inactive volcano, clean streets and exciting nightlife, Portland, Oregon, is an excellent vacation destination. Take our quiz to learn more about this lovely city.
Lewis and Clark Pictures
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Lewis and Clark pictures show you scenes from the Corps of Discovery's journey West. Check out pictures of the Lewis and Clark expedition.
How Lewis and Clark Worked
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Lewis and Clark are famous for exploring the Louisiana Purchase. Learn about the exploration of Lewis and Clark and their Corps of Discovery.
The Ultimate Music Festivals Quiz
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Thousands of people flock to music festivals every year. Each festival has its own character and flair, but they all have one thing in common: music. If you are a fan of music festivals, have a go at this quiz and see what you know about a few of the most popular music festivals in the world.
Vanished Without a Trace: Infamous Disappearances Quiz
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Forget ghost stories — the most terrifying tales tell of real people who seemingly vanished from sight. Take our quiz to test your knowledge of famous disappearances, past and present.
How the Hunt for D.B. Cooper Worked
history.howstuffworks.com/historical-events/hunt-for-d-b-cooper-worked.htm
After nearly 50 years capturing the imaginations of millions, the D.B. Cooper plane-hijacking case is closed. Will we ever know the true culprit?