There are three major rivers to the Western Hemisphere and they are Yukon, Copper and Mackenzie river. :)
This one, that one, and the other one. If you were more specific about the region, we could be more specific about the rivers.
The three most important rivers in the Northeast region of the United States are the Hudson River, the Connecticut River, and the Merrimack River. These rivers have played significant roles in the region's history, economy, and ecosystems.
The Western Cordillera
Three major rivers that run through the central United States are Missouri River, Arkansas River, and Mississippi River.
Three mountain ranges in the western region of the US are the Rocky Mountains, the Sierra Nevada, and the Cascade Range.
The region of Latin America extends into the Northern Hemisphere, Southern Hemisphere, and Western Hemisphere.
Wabash, Ohio and Mississippi respectively
Connecticut, Hudson, Mohawk, Susquehanna, Paucatuck. (:
The salmon river, the smith river, and the trinity river
Narmada River, Sone River and Johila river (Mahanadi)
Numerous different placesHuang HeChang JiangXi Jiang