Continental Watershed Divide
A continental divide is an area of raised terrain that separates a continent’s river systems that feed to different basins, and a watershed is an entire river system—an area drained by a river and its tributaries.
Source: National Geographic. 2020. Resource Library, Encyclopedic https://www.nationalgeographic.org/encyclopedia/continental-divide/#:~:text=A%20continental%20divide%20is%20a,ocean%2C%20bay%2C%20or%20sea.&text=Divides%20are%20boundaries%20that%20separate,as%20mountain%20ranges%20or%20hills.