Kalahari Desert has too dense a ground cover. The main region that lacks ground cover is in the southwest Kalahari (southeast of Namibia, northwest of South Africa and southwest of Botswana) in the south of the Kgalagadi Transfrontier Park. For instance in the ZF Mgcawu District Municipality of South Africa, total vegetation cover may be as low as 30.72% on non-protected (from cattle grazing) farmlands south of Twee Rivieren Rest Camp and 37.74% in the protected (from cattle grazing) South African side of the Kgalagadi Transfrontier Park : these southernmost Kalahari xeric savanna areas are truly semi-deserts. However, in all the remaining
Lost City of the Kalahari any signs of construction in the area. A. J. Clement researched the story in 1964 and advanced a new theory. Clement claimed his study of Farini's description of his route highlighted inconsistencies in Farini's story. Clement concluded that Farini went deep into Southern Africa, but he never actually went to the heart of the Kalahari where he claimed the Lost City was sited. To test this premise Clement explored what he regarded as Farini's true route and discovered a set of monumental rocks, resembling walls. Clement concluded that Farini's 'lost city' was shown to exist but as a natural formation.