Question - A feature within this region comprised of hexagonal arrangements of clay was thought to have been fed by the Kunene River.

A feature within this region comprised of hexagonal arrangements of clay was thought to have been fed by the Kunene River. Eiseb and Epukiro are among the dry riverbeds in this region that are termed omiramba. The Groot-vloer Pan and Etosha Pan can be found in this region whose name translates as "Dry Place" in the Khoekhoe language. Stretching nearly one million square kilometers, this semi-arid desert contains the Okavango Delta along the border of Angola and Namibia. For the point, name this African desert that covers most of Botswana.

Answer:

 Kalahari Desert