Where is alluvial fan located?

Alluvial fans are typically found at the bases of mountain ranges or hills, where streams and rivers exit steep terrains and enter flatter landscapes. They form in arid or semi-arid regions, where sediment carried by water is deposited as the flow velocity decreases. Notable examples can be seen in places like Death Valley in California and the Himalayas in Nepal and India. These formations create wide, fan-shaped deposits of sediment that can vary in size and composition.