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Can You Get More Than 11 Right on This Difficult American Geography Quiz?

play.howstuffworks.com/quiz/can-you-get-more-than-11-right-on-this-difficult-american-geography-quiz

You won't only need to know the longest river in America, but you might need to know exactly how many U.S. states it touches. Yes! This American geography test is that deep. Now is your time to prove you are up to the challenge!