Dune types include coppice, wind-shadow, Akle, Barchan, and parabolic. Barchan and transverse dunes form near these creeks. One picture below shows a definite barchan. The village's name means "cell (chapel) of St. Barchan". Liu Hsin Crater shows some barchan dunes. Barchan, and Seif dunes are among the most common of desert dunes. Barchan sand dunes are located on the valley's margins. Depositional landforms include dunes, barchan dunes, ripple marks, and loess. The barchan is a crescent in form, which fact makes it beauty unique. Barchan dunes are crescent-shaped mounds which are generally wider than they are long. It has barchan dunes as well as star dunes of 300 to 430 meters high.