One in a Krillion +100 1 answer — tap to reveal Deep Cut +85 36 answers — tap to reveal Alabama River American River Athabasca Balsas River Biobio River Bow River Churchill River Copper River Des Moines River Detroit River Essequibo Gila River Guadalupe River Kentucky River Klamath River Kuskokwim River Lerma River Madeira Maranon River Merrimack River Minnesota River Negro River Peace River Purus River Putumayo River Roanoke River Salt River Sao Francisco Spokane River Tanana River Tapajos Tocantins River Truckee River Ucayali Usumacinta River Xingu River Rare +60 34 answers — tap to reveal Allegheny River Arkansas River Brazos River Charles River Chattahoochee River Connecticut River Cumberland River Fraser River Green River Illinois River James River Mackenzie Monongahela River Orinoco Ottawa River Paraguay River Parana Pecos River Platte River Red River Rio de la Plata Sacramento River Saskatchewan River Savannah River Shenandoah River Snake River Susquehanna River Suwannee River Tennessee River Trinity River Uruguay River Wabash River Willamette River Yukon Schooler +30 10 answers — tap to reveal Colorado Columbia Delaware River Hudson Missouri Niagara River Ohio Potomac River Rio Grande St. Lawrence Too Clever +15 1 answer — tap to reveal Plankton +10 2 answers — tap to reveal 