This is the current revision of Alluvial fan as edited by Philip J. Rayment(Talk | contribs) at 12:56, December 9, 2007. This URL is a permanent link to this version of this page.
An alluvial fan is a fan-shaped pile of sediment that forms where a rapidly flowing mountain stream enters a relatively flat valley. As water slows down, it deposits sediment (alluvium) that gradually builds a fan.[1]
