Geography
US Geography Quiz
Rivers, mountains, landmarks, and borders — how well do you know American geography?
Rivers, mountains, landmarks, and borders — how well do you know American geography?
The United States spans 3.8 million square miles across six time zones, from the volcanic islands of Hawaii to the frozen tundra of Alaska — yet a 2023 survey found that only 36% of Americans could correctly identify all five Great Lakes. This quiz tests your knowledge of American rivers, mountain ranges, landmarks, and more.
Each round presents 10 randomized questions from a pool of 50, with four multiple-choice options and instant feedback after every answer. Your final score comes with a performance tier and shareable results.
You'll explore major rivers like the Mississippi and Colorado, mountain ranges from the Rockies to the Appalachians, national parks, state borders, and geographic extremes. Did you know that Denali in Alaska is not just the tallest mountain in the US but the tallest in all of North America at 20,310 feet?
The Missouri River is the longest river in the United States at approximately 2,341 miles. However, the Mississippi River system (including the Missouri as a tributary) is the longest river system in North America at about 3,902 miles.
Denali (formerly Mount McKinley) in Alaska is the tallest mountain in the United States and all of North America at 20,310 feet (6,190 meters). The tallest peak in the contiguous 48 states is Mount Whitney in California at 14,505 feet.
There are five Great Lakes: Superior, Michigan, Huron, Erie, and Ontario. Together they contain about 21% of the world's surface fresh water. A common mnemonic is HOMES (Huron, Ontario, Michigan, Erie, Superior).
Last updated: March 2026