When windblown sediments settle behind an obstacle what is created?

When windblown sediments settle behind an obstacle, they create a feature known as a dune. Dunes are typically formed as the wind slows down and loses its ability to carry the sediment, allowing it to accumulate in mounds or ridges. The shape and size of the dune can vary based on wind direction, sediment availability, and vegetation. These formations are common in desert environments and along Coastlines.