What is a valley?
A valley is a low corridor extending between higher areas.
Formation, concepts and processes
Rivers often erode V-shaped profiles while former glaciers may leave broader U-shaped profiles. Bedrock, flow, tectonics and time modify real shapes, so shape alone does not prove origin. Sediment can create flat valley floors.
Examples, applications and limits
Valleys can carry transport routes, farms and settlements. Proximity to a floodplain raises flood risk. Planning considers past floods, slope stability and current land use together.
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