A drainage basin, or catchment as it is also called, is the part of the land surface that is drained by a single river system.
Drainage Basins
Redrawing the Map of the World's International River Basins
Caucasus - Drainage basins • Map • PopulationData.net
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Opinion: An equation to restore river basins in South Asia
9: Running Water Basins: land area that contributes water to a river system Divide: separates different drainage basins Ex. Drainage basin of Mississippi. - ppt video online download
Ocean drainage basin map of the world [OC] : r/dataisbeautiful
Shrinking and splitting of drainage basins in orogenic landscapes from the migration of the main drainage divide
Watersheds and Drainage Basins Presentation
List of drainage basins by area - Wikipedia
Weathering and Landforms 5.3