| Hint | Answer | % Correct |
|---|---|---|
| Nearly Splits the U.S in two | Mississippi River | 98%
|
| Flows for a good portion of the U.S - Mexico Border | Rio Grande | 95%
|
| Flows through the Grand Canyon | Colorado River | 93%
|
| Longest Tributary of the Above | Missouri River | 93%
|
| Has the largest River Basin | Amazon River | 88%
|
| Flows through the U.S Capital | Potomac River | 76%
|
| Portland is located on this river | Columbia River | 73%
|
| Longest in Alaska | Yukon River | 73%
|
| Largest outflow of the Great Lakes | St Lawrence River | 71%
|
| Forms in Pittsburgh | Ohio River | 68%
|
| Longest in Canada | Mackenzie River | 66%
|
| Largest river of the Rio de la Plata | Parana River | 66%
|
| Flows from Albany to New York City | Hudson River | 56%
|
| Asuncion is on this river | Paraguay River | 56%
|
| Flows from Colorado to the Mississippi | Arkansas River | 54%
|
| Flows along the Argentina-Uruguay Border | Uruguay River | 46%
|
| Forms a massive waterfall in Argentina | Iguazu River | 29%
|
| Flows from Lake St. Clair to Lake Erie | Detroit River | 20%
|
| Flows from Colombia to Manaus | Rio Negro | 20%
|
| Longest in Venezuela | Orinoco River | 2%
|