What is a river source?


Quick Answer

A river source is the place from which a river begins to flow. Types of sources include lakes, bogs, springs, streams, collections of snow or rainwater, glaciers, swamps and other rivers.

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Full Answer

Sources for rivers are typically found at higher elevations than downstream portions of the river. A river or stream that flows into a larger river may also be called a tributary. The main portion of the river often travels through a floodplain, leading out to the river's mouth, where the river deposits its water into a larger body, such as an ocean or a lake. The source of the river is the furthest point from the mouth of the river, also known as the estuary.

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