The Ghaap lies in what is now Griqualand-West, with both having roughly the same borders. It is on average 1500 metres above sealevel, with a basis of hard quartzites. In the west, the Ghaap gradually rises to meet the Asbesberg and Langeberg. It is seperated from the Highveld, of which it is an extension, by the Harts, Vaal and Orange Rivers.
