Western Hemisphere Basins

Area

Basins

North America

 

California

Sacramento

San Joaquin

Santa Maria

Colorado

Denver-Julesburg

Front Range

Montana

Western Foreland

North Dakota

Williston

Nevada

Pine Valley

Rush Valley

White River Valley

Wyoming

Powder River

South America

 

Argentina

ColhuƩ Huapi

Brazil

Campos

Espirito Santo

Santos

Colombia

Eastern Cordillera

Llanos

Upper & Middle Magdalena

Ecuador

Oriente

Peru

Marañon

Ucayali