- What is the longest river in the United States? A) Missouri River
B) Mississippi River
C) Colorado River
D) Rio Grande
Answer: A) Missouri River - Which river flows through the Grand Canyon? A) Colorado River
B) Mississippi River
C) Ohio River
D) Snake River
Answer: A) Colorado River - What river forms part of the border between the United States and Mexico? A) Rio Grande
B) Arkansas River
C) Columbia River
D) Hudson River
Answer: A) Rio Grande - Which river is known as the “Father of Waters”? A) Missouri River
B) Mississippi River
C) Ohio River
D) Tennessee River
Answer: B) Mississippi River - What river runs through New Orleans? A) Mississippi River
B) Ohio River
C) Arkansas River
D) Potomac River
Answer: A) Mississippi River - 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
Answer: A) Colorado River - The Columbia River primarily flows through which two states? A) Washington and Oregon
B) California and Nevada
C) Idaho and Montana
D) New York and Pennsylvania
Answer: A) Washington and Oregon - Which river is known for its extensive system of locks and dams? A) Ohio River
B) Missouri River
C) Mississippi River
D) Tennessee River
Answer: C) Mississippi River - What is the primary tributary of the Mississippi River? A) Ohio River
B) Missouri River
C) Arkansas River
D) Red River
Answer: B) Missouri River - Which river runs through the Great Smoky Mountains National Park? A) Tennessee River
B) Ohio River
C) Potomac River
D) Susquehanna River
Answer: A) Tennessee River - Which river is the largest in the state of Texas? A) Rio Grande
B) Brazos River
C) Colorado River
D) Trinity River
Answer: A) Rio Grande - The Snake River is a major tributary of which river? A) Columbia River
B) Missouri River
C) Mississippi River
D) Ohio River
Answer: A) Columbia River - What river flows through the capital city of Washington, D.C.? A) Potomac River
B) Susquehanna River
C) Delaware River
D) James River
Answer: A) Potomac River - Which river is famous for its salmon runs and fishing? A) Mississippi River
B) Columbia River
C) Ohio River
D) Arkansas River
Answer: B) Columbia River - What river is known for forming the boundary between Kansas and Missouri? A) Arkansas River
B) Missouri River
C) Kansas River
D) Ohio River
Answer: B) Missouri River - Which river is the longest in California? A) Sacramento River
B) San Joaquin River
C) Colorado River
D) Russian River
Answer: A) Sacramento River - What is the primary use of the Tennessee River? A) Hydroelectric power
B) Irrigation
C) Recreation
D) All of the above
Answer: D) All of the above - Which river flows through the city of Chicago? A) Des Plaines River
B) Chicago River
C) Kankakee River
D) Illinois River
Answer: B) Chicago River - What river is known for its historic role in westward expansion? A) Missouri River
B) Mississippi River
C) Colorado River
D) Snake River
Answer: A) Missouri River - Which river forms the border between New York and Pennsylvania? A) Hudson River
B) Delaware River
C) Susquehanna River
D) Allegheny River
Answer: B) Delaware River - The Hudson River flows into which body of water? A) Atlantic Ocean
B) Gulf of Mexico
C) Chesapeake Bay
D) Great Lakes
Answer: A) Atlantic Ocean - Which river is known for its role in the Louisiana Purchase? A) Mississippi River
B) Missouri River
C) Ohio River
D) Arkansas River
Answer: A) Mississippi River - What river is primarily used for navigation and shipping in the Midwest? A) Missouri River
B) Ohio River
C) Illinois River
D) Mississippi River
Answer: D) Mississippi River - Which river is famous for the famous “Oregon Trail”? A) Missouri River
B) Colorado River
C) Snake River
D) Columbia River
Answer: A) Missouri River - What river is the primary water source for the Central Valley in California? A) Sacramento River
B) Colorado River
C) San Joaquin River
D) Kings River
Answer: A) Sacramento River - Which river is known for its picturesque landscapes and whitewater rafting? A) Colorado River
B) Snake River
C) Rio Grande
D) Potomac River
Answer: A) Colorado River - What river is often referred to as the “Mighty Mississippi”? A) Missouri River
B) Mississippi River
C) Ohio River
D) Arkansas River
Answer: B) Mississippi River - The Green River is a major tributary of which river? A) Mississippi River
B) Colorado River
C) Columbia River
D) Missouri River
Answer: B) Colorado River - Which river flows through the famous Niagara Falls? A) Hudson River
B) Niagara River
C) St. Lawrence River
D) Ohio River
Answer: B) Niagara River - The Allegheny River joins with which river to form the Ohio River? A) Monongahela River
B) Susquehanna River
C) Kanawha River
D) Tennessee River
Answer: A) Monongahela River
| River Name | Length | Location | Significance |
| Missouri River | ~2,341 km | Montana to Missouri | Longest river in the U.S.; important for navigation and agriculture. |
| Mississippi River | ~3,734 km | Minnesota to Louisiana | Major river system; vital for transport and trade. |
| Colorado River | ~2,333 km | Colorado to California | Flows through the Grand Canyon; essential for irrigation and hydroelectric power. |
| Rio Grande | ~3,051 km | Colorado to Texas/Mexico | Forms part of the U.S.-Mexico border; important for water supply. |
| Columbia River | ~2,000 km | Washington/Oregon | Key for hydroelectric power and shipping; famous for salmon runs. |
| Arkansas River | ~2,364 km | Colorado to Arkansas | Important for navigation; supports agriculture in its basin. |
| Ohio River | ~1,579 km | Pennsylvania to Illinois | Major tributary of the Mississippi; historically significant for transport. |
| Tennessee River | ~1,062 km | Tennessee and Alabama | Vital for hydroelectric power and recreation. |
| Sacramento River | ~725 km | California | Major water source for agriculture in Central Valley. |
| Hudson River | ~507 km | New York | Important for commerce and transportation; scenic beauty. |
| Potomac River | ~383 km | Maryland to Virginia | Flows through Washington, D.C.; significant for historical and cultural reasons. |
| Snake River | ~1,735 km | Wyoming to Washington | Key tributary of the Columbia; known for scenic landscapes and recreation. |
| Great Miami River | ~160 km | Ohio | Important for flood control and recreation. |
| Alabama River | ~1,000 km | Alabama | Supports local ecosystems and recreational activities. |
| Deleware River | ~370 km | New York to Pennsylvania | Important for water supply and recreation; historic significance. |