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Introduction How Rivers Run Stories Value Of A River What We Can Do
Flow of a River - Hydrology
Factors of flow: Topography (pg 9 of 11)

Topography of the watershed is another factor affecting flow into a river system. Steep hills drain quickly; level land pocked with bogs, wetlands, or lakes retains water and meters it more slowly to streams. Bare bedrock and impermeable clay drain more quickly than porous soils, such as sand. Porous soils and fractured bedrock allow runoff to enter the groundwater supply, further metering discharge to a nearby stream.

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Water cycle
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Stream order
Factors of flow
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