United States River Basins Quiz
Drainage systems, watersheds (10 questions).
United States River Basins Quiz: Quick Study Notes
River basins define the geography of the United States, dictating agriculture, transportation routes, and state borders. This quiz tests your knowledge of the major drainage systems, from the Continental Divide to the Gulf of Mexico.
Key Takeaways
- The Mississippi-Missouri system is the fourth longest in the world.
- The Rio Grande forms a natural political boundary between the US and Mexico.
- The Colorado River supplies crucial water to the arid Southwest.
- Triple Divide Peak in Montana sends water to three different oceans.
- The Saint Lawrence River is the outlet for the Great Lakes.
Frequently Asked Questions
What is the largest watershed in the US?
The Mississippi River Basin is the largest, covering over 1.2 million square miles.
What does the Continental Divide do?
It is the hydrological divide that separates water flowing toward the Pacific Ocean from water flowing toward the Atlantic and Arctic Oceans.
Does the Great Basin drain into the ocean?
No. It is an endorheic basin, meaning its waters drain internally into lakes or evaporate.
Which river flows through the Grand Canyon?
The Colorado River flows through the Grand Canyon before reaching the Gulf of California.
Where does the Great Lakes water go?
The Great Lakes drain into the Atlantic Ocean via the Saint Lawrence River.
GeoQuizzy Editorial Team is a collective of geography educators, researchers, and quiz designers dedicated to creating accurate, engaging, and exam-relevant geography content. The team focuses on physical geography, human geography, maps, landforms, climate, and world regions, transforming core concepts into interactive quizzes that support students, educators, and competitive-exam aspirants. Every quiz published on GeoQuizzy is carefully reviewed for factual accuracy, clarity, and alignment with academic curricula and standardized exams.