A river drainage basin is an area of land where precipitation collects and then flows into a river or other body of water. This includes all the land that drains into a particular river, with the river being the focal point or center of the basin. The boundaries of a river drainage basin are determined by topography, including hills and mountains, as well as the flow of water. Rivers and their drainage basins are interconnected and play an important role in water management, land use planning, and ecology.
