Controversy exists over the classification of fluvially formed subaerial fans. The Okavango Fan represents a new type of subaerial fan in which meandering and low sinuosity rivers dominate in the shaping of the depositional system. It is distinguished by the large percentage of areas supporting lush vegetation. This vegetation is, in turn, important in confining the fluvial channel systems. Botswana; Geomorphology; Sedimentology.