A brief description, together with a generalised geological map, of the stratigraphy of the Richtersveld and the eastern Sperrgebiet is given, strata varying in age from the Kheis to the Tertiary being described. A new assemblage of sediments, the Gariep system, is noted and the tentative correlation of this system with the Damara suggested. Four periods of magmatic activity are mentioned. Finally, the geological history of the area is briefly described. Keywords: Geology, Richtersveld, Eastern Sperrgebiet.