A report on Tributary and Stream

The Nam Khan flows into the Mekong at Luang Prabang in Laos.
Aubach (Wiehl) in North Rhine-Westphalia, Germany
At Harpers Ferry, West Virginia, looking downstream, the Shenandoah River (bottom right) meets the Potomac River, which flows from bottom left to top right. So the Shenandoah is a right tributary of the Potomac, not a left tributary.
Rocky stream in Italy
The basin of the Amazon River is a system made up of many tributary streams. The streams shown on the map besides the Amazon are tributaries of the Amazon.
Frozen stream in Enäjärvi, Pori, Finland
The Benue River is fed by multiple tributaries originating in the Adamawa Plateau; many of the highest tributaries are seasonal streams. The Benue is itself a major tributary of the Niger.
Stream near Montriond in southeastern France
Huai River (itself a tributary of the Yangtze) and tributaries
Wyming Brook in Sheffield, UK
Jialing River (itself a tributary of the Yangtze) and tributaries
A small stream in Lake Parramatta, Sydney
The Liao River is a much simpler example of a river basin with tributaries. The main tributaries noted on this map are the Hun River, Taizi River, Dongliao River, Xinkai River, Xiliao River, Xar Moron River and the Laoha River. The Xiliao River's tributaries are the Xar Moron and Laoha rivers.
Stream with low gradient surrounded by natural riparian vegetation (Rhineland-Palatinate)
The Mekong is a trans-boundary river, originating in the Tibetan Plateau. Its upper tributary river systems (e.g. the Salween River) are restricted to narrow gorges, but the tributaries that feed its lower reaches (e.g. the Mun River) cover larger areas.
A low level stream in Macon County, Illinois, US
The water basin of the Wabash River; the other rivers (not including the Ohio River) are tributaries of the Wabash River. The Vermillion River (and its forks) is a highlighted example of a tributary of the Wabash River. The Wabash River is also a tributary of the Ohio River, which in turn is a tributary of the Mississippi River.
Small tributary stream, Diamond Ridge, Alaska, US
The Yamuna is the second-largest tributary river of the Ganges and the longest tributary in India. It flows almost parallel to the Ganges about its right bank for {{convert|1376|km}} before merging with it at the Triveni Sangam, Allahabad.
Creek in Perisher Ski Resort, Australia
Stream in Southbury, US
Australian creek, low in the dry season, carrying little water. The energetic flow of the stream had, in flood, moved finer sediment further downstream. There is a pool to lower right and a riffle to upper left of the photograph.
Stream in Alberta
A small, narrow stream flowing down a tiny dell in Pennsylvania.

A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake.

- Tributary

A tributary is a contributory stream, or a stream which does not reach a static body of water such as a lake or ocean but joins another river (a parent river).

- Stream
The Nam Khan flows into the Mekong at Luang Prabang in Laos.

2 related topics with Alpha


The Amazon River (dark blue) and the rivers which flow into it (medium blue).


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The Amazon River (dark blue) and the rivers which flow into it (medium blue).
The start of a mountain stream.
Melting toe of Athabasca Glacier, Jasper National Park, Alberta, Canada
The Colorado River at Horseshoe Bend, Arizona
The Porvoo River (Porvoonjoki) in the medieval town of Porvoo, Finland
Nile River delta, as seen from Earth orbit. The Nile is an example of a wave-dominated delta that has the classic Greek letter delta (Δ) shape after which river deltas were named.
A radar image of a 400 km river of methane and ethane near the north pole of Saturn's moon Titan
River meandering course
Flash flooding caused by a large amount of rain falling in a short amount of time
The mouth of the River Seaton in Cornwall after heavy rain caused flooding and significant erosion of the beach.
Frozen river in Alaska
Leisure activities on the River Avon at Avon Valley Country Park, Keynsham, United Kingdom. A boat giving trips to the public passes a moored private boat.
Watermill in Belgium.
River bank repair

A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river.

Even in humid regions, the location where flow begins in the smallest tributary streams generally moves upstream in response to precipitation and downstream in its absence or when active summer vegetation diverts water for evapotranspiration.

The Aubach (Wiehl) in Germany (Watercourse)

Body of water

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Any significant accumulation of water on the surface of Earth or another planet.

Any significant accumulation of water on the surface of Earth or another planet.

The Aubach (Wiehl) in Germany (Watercourse)
A fjord (Lysefjord) in Norway
River Gambia, Niokolokoba National Park
Port Jackson, Sydney, New South Wales
The Canal Grande in Venice, one of the major water-traffic corridors in the city. View from the Accademia bridge.
A tide pool in Santa Cruz, California with sea anemones and sea stars
A weir in Toledo, Spain. Weirs are frequently used to change the height of a riverlevel, prevent floodings, and measure water discharge.

A body of water does not have to be still or contained; rivers, streams, canals, and other geographical features where water moves from one place to another are also considered bodies of water.

Tributary or affluent – a stream or river that flows into the main stem (or parent) river or a lake.