Alternatively known as a drainage area or catchment area, these refer to the areas drained by a specific outlet, such as a river or lake.
Map of Ecuador showing location of Cajas National Park, as well as
Waters SpringerLink
Mapping the World's River Basins by Continent
What is the difference between watersheds, streams, rivers and drainage basins? - Quora
Endorheic Basin - WorldAtlas
Zambia Maps & Facts - World Atlas
What are drainage basins and what are their characteristics? - Internet Geography
Sustainability, Free Full-Text
Iowa's M and M Divide – Joy Neal Kidney