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Challenge your knowledge of US river borders in this quiz. Test yourself on the rivers that act as borders between states and countries.

Do abbreviations or alternate spellings count?

Yes. Most quizzes allow common abbreviations, alternate spellings, and short forms. Try typing just the first few letters — if it matches, it will autofill.

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US River Borders

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Name the rivers which serve as borders in the US, either between two states or a state and Canada or Mexico. Sorted by # of states/countries the river borders. Tidal flows are not included.

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