Geography of South Africa ore from the interior. South Africa is largely a dry country, with most of its western regions being semi-desert. The rainfall increases in the east, (the Highveld, KwaZulu-Natal, and the Eastern Midlands), and falls primarily in summer. The narrow southern coastal strip receives all-year rainfall in the east (the Garden Route), and winter rainfall in the west (on the Cape Peninsula and its surrounds). The summers are warm to hot, while the winter temperatures can vary, depending on locality from bitterly cold to cool. Thus the Karoo, which occupies a large part of the western Central Plateau, has a climate
Karoo sills (see below), creating multiple flat-topped hills, or Karoo Koppies, which are iconic of the Great Karoo. The vegetation of the Upper is similar to the Lower Karoo, so few people make a distinction between the two. The main highway (the N1) and railway line from Cape Town to the north enter the Lower Karoo from the Hex River Valley just before Touws River and follow a course about 50 km south of the Great Escarpment up to Beaufort West. Thereafter, they gradually ascend the Great Escarpment along a broad valley to Three Sisters on the Central Plateau and the