MCQs on rivers of United States January 8, 2026September 24, 2024 by u930973931_answers 30 min Score: 0 Attempted: 0/30 Subscribe 1. What is the longest river in the United States? (A) Missouri River (B) Mississippi River (C) Colorado River (D) Rio Grande 2. Which river flows through the Grand Canyon? (A) Mississippi River (B) Colorado River (C) Ohio River (D) Snake River 3. What river forms part of the border between the United States and Mexico? (A) Hudson River (B) Arkansas River (C) Columbia River (D) Rio Grande 4. Which river is known as the “Father of Waters”? (A) Missouri River (B) Mississippi River (C) Ohio River (D) Tennessee River 5. What river runs through New Orleans? (A) Potomac River (B) Ohio River (C) Arkansas River (D) Mississippi River 6. Which river is the main water source for the city of Los Angeles? (A) Colorado River (B) Sacramento River (C) San Gabriel River (D) Rio Grande 7. The Columbia River primarily flows through which two states? (A) Idaho and Montana (B) California and Nevada (C) Washington and Oregon (D) New York and Pennsylvania 8. Which river is known for its extensive system of locks and dams? (A) Ohio River (B) Missouri River (C) Mississippi River (D) Tennessee River 9. What is the primary tributary of the Mississippi River? (A) Ohio River (B) Red River (C) Arkansas River (D) Missouri River 10. Which river runs through the Great Smoky Mountains National Park? (A) Potomac River (B) Ohio River (C) Tennessee River (D) Susquehanna River 11. Which river is the largest in the state of Texas? (A) Trinity River (B) Brazos River (C) Colorado River (D) Rio Grande 12. The Snake River is a major tributary of which river? (A) Missouri River (B) Columbia River (C) Mississippi River (D) Ohio River 13. What river flows through the capital city of Washington, D.C.? (A) Potomac River (B) Susquehanna River (C) Delaware River (D) James River 14. Which river is famous for its salmon runs and fishing? (A) Mississippi River (B) Arkansas River (C) Ohio River (D) Columbia River 15. What river is known for forming the boundary between Kansas and Missouri? (A) Missouri River (B) Arkansas River (C) Kansas River (D) Ohio River 16. Which river is the longest in California? (A) San Joaquin River (B) Sacramento River (C) Colorado River (D) Russian River 17. What is the primary use of the Tennessee River? (A) Hydroelectric power (B) Irrigation (C) Recreation (D) All of the above 18. Which river flows through the city of Chicago? (A) Des Plaines River (B) Illinois River (C) Kankakee River (D) Chicago River 19. What river is known for its historic role in westward expansion? (A) Missouri River (B) Mississippi River (C) Colorado River (D) Snake River 20. Which river forms the border between New York and Pennsylvania? (A) Delaware River (B) Hudson River (C) Susquehanna River (D) Allegheny River 21. The Hudson River flows into which body of water? (A) Chesapeake Bay (B) Gulf of Mexico (C) Atlantic Ocean (D) Great Lakes 22. Which river is known for its role in the Louisiana Purchase? (A) Ohio River (B) Missouri River (C) Mississippi River (D) Arkansas River 23. What river is primarily used for navigation and shipping in the Midwest? (A) Mississippi River (B) Ohio River (C) Illinois River (D) Missouri River 24. Which river is famous for the historic “Oregon Trail”? (A) Missouri River (B) Colorado River (C) Snake River (D) Columbia River 25. What river is the primary water source for the Central Valley in California? (A) Kings River (B) Colorado River (C) San Joaquin River (D) Sacramento River 26. Which river is known for its picturesque landscapes and whitewater rafting? (A) Snake River (B) Colorado River (C) Rio Grande (D) Potomac River 27. What river is often referred to as the “Mighty Mississippi”? (A) Mississippi River (B) Missouri River (C) Ohio River (D) Arkansas River 28. The Green River is a major tributary of which river? (A) Colorado River (B) Mississippi River (C) Columbia River (D) Missouri River 29. Which river flows through the famous Niagara Falls? (A) Hudson River (B) Ohio River (C) St. Lawrence River (D) Niagara River 30. The Allegheny River joins with which river to form the Ohio River? (A) Susquehanna River (B) Monongahela River (C) Kanawha River (D) Tennessee River