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.
Major River basins in Virginia and West Virginia
What is a drainage basin? - Quora
Coastal Drainage Basins, San Diego County, California
1. Drainage basin hydrology & geomorphology
Mapping the World's River Basins by Continent
Geography - Theme 2: Rivers - Drainage Basins + Characteristics of a River Diagram
o./.ibVfWbHyI65665uDWzO-A_b.jpg
Drainage Basin Rashid's Blog: An Educational Portal
Drainage Basins
River systems and drainage basin educational structure vector illustration Stock Vector by ©VectorMine 393244964
Opinion: An equation to restore river basins in South Asia