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River ecosystems are flowing waters that drain the landscape, and include the biotic (living) interactions amongst plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions of its many parts. [1] [2] River ecosystems are part of larger watershed networks or catchments, where smaller headwater streams ...
A river is a natural freshwater stream that flows on land or inside caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of its course if it runs out of water, or only flow during certain seasons.
Dendritic drainage: the Yarlung Tsangpo River, Tibet, seen from space: snow cover has melted in the valley system. In geomorphology, drainage systems, also known as river systems, are the patterns formed by the streams, rivers, and lakes in a particular drainage basin. They are governed by the topography of land, whether a particular region is ...
Slave River: part of Finlay–Peace–Slave–Mackenzie river system--13th longest in the world, traditional Danezaa people lived along its shores Athabasca River: Canada: Alberta: 765 mi (1,231 km) Slave River: Canadian Heritage Rivers System: Majorqaq: Greenland: Qeqqata: 44 mi (71 km) Atlantic Ocean: Greenland is considered part of North ...
Its upper tributary river systems (e.g. ngom chu ) are restricted to narrow gorges, but the tributaries that feed its lower reaches (e.g. the Mun River) cover larger areas. The water basin of the Wabash River ; the other rivers (not including the Ohio River ) are tributaries of the Wabash River.
It flows west to east starting in Colorado and dumping into the Mississippi River. Its length of 1,469 miles (2,364 km) allows it to flow through Colorado, Kansas, Oklahoma, and Arkansas. It is the sixth-longest river in the US, the second-longest tributary to the Mississippi River System, and the 45th longest river in the world. [11]
Although each tributary has its own source, international practice is to take the source farthest from the river mouth as the source of the entire river system, from which the most extended length of the river measured as the starting point is taken as the length of the whole river system, [47] and that furthest starting point is conventionally ...
When not listing river lengths, however, alternative definitions may be used. The Missouri River's source is named by some USGS and other federal and state agency sources, following Lewis and Clark's naming convention, as the confluence of the Madison and Jefferson rivers, rather than the source of its longest tributary (the Jefferson). [3]