| Length | Hint | River | % Correct |
|---|---|---|---|
| 5,464 | Its basin was the birthplace of ancient Chinese civilization. | Yellow River | 99%
|
| 2,432 | The longest river in South Africa | Orange River | 74%
|
| 3,700 | Flows north from Juba to Khartoum | White Nile | 70%
|
| 1,450 | Flows from Lake Tana in Ethiopia to Khartoum | Blue Nile | 63%
|
| 2,824 | The Amur River's Chinese name, Heilong Jiang, means this | {Black} Dragon River | 56%
|
| 2,330 | North American river; Spanish for "colored red" | Colorado River | 51%
|
| 2,190 | A tributary of the Mississippi in Texas, Oklahoma, Arkansas, and Louisiana | Red River | 43%
|
| 1,149 | Originates in China and then goes past Hanoi | Red River | 39%
|
| 2,250 | Major Amazon tributary; famous for dark waters | Rio Negro | 31%
|
| 105 | Washington state river that a notorious serial killer was named after | Green River | 30%
|
| 890 | Goes through Winnipeg and forms eastern border of North Dakota | Red River | 23%
|