Most Americans Can’t Pass This Simple Geography Quiz

Which is the longest river in the United States?

10%
Retry Correct Incorrect The Missouri River flows east and south for 2,341 miles before it enters the Mississippi River just north of St. Louis, Missouri. Other cities the river flows through include Kansas City, Kansas; Kansas City, Missouri; Bismarck, North Dakota; and Sioux City, Iowa.

Which is the longest river in the United States?

  • Missouri River
  • The Rio Grande
  • Colorado River
  • Mississippi River
10%

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