river basin basin watershed drainage basin catchment area catchment basin drainage area
river_basin%1:15:00:: basin%1:15:00:: watershed%1:15:01:: drainage_basin%1:15:01:: catchment_area%1:15:00:: catchment_basin%1:15:00:: drainage_area%1:15:00::
porečje
the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
flood control in the Missouri basin