Gobi Desert from , and those of the ranges from higher, though in a few cases they reach altitudes of . The elevations do not form continuous chains, but make up a congeries of short ridges and groups rising from a common base and intersected by a labyrinth of ravines, gullies, glens and basins. But the tablelands, built up of the horizontal red deposits of the Han-gai (Obruchev's Gobi formation) which are characteristic of the southern parts of eastern Mongolia, are absent here or occur only in one locality, near the Shara-muren river. They are greatly intersected by gullies or dry watercourses.
Lost in the Desert shot in two versions, one in Afrikaans and the other in English. The Afrikaans version appeared in 1969 under the title "Dirkie", and the English version appeared in either 1969 or 1970 (possibly varying according to country) under the title "Dirkie Lost in the Desert", which was sometimes referred to and marketed as "Lost in the Desert", which is possibly an alternative official title for the English version. The film was released on DVD in 2005 (copyright 1999), and this disc contains both versions of the film, selectable from the front menu. The English version is about 70 minutes long,