+River valleys are natural depressions in the Earth's surface, continuously sculpted by the persistent flow of a [River](/wiki/river). These fertile, often V-shaped or U-shaped features are formed through millennia of [Erosion](/wiki/erosion) and sediment deposition, shaping landscapes and supporting diverse life.
+## See also
+- [Delta](/wiki/delta)
+- [Canyon](/wiki/canyon)
+- [Floodplain](/wiki/floodplain)
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