Karoo National Park Escarpment in the Karoo is also formed, in many places including the Karoo National Park, by a thick dolerite sill. The vegetation consists primarily of dwarf (less than 1 m high) xerophytic shrubs with some grasses. The shrubs and grasses are deciduous, mainly in response to the irregular rainfall Karoo National Park The Karoo National Park, founded in 1979, is a wildlife reserve in the Great Karoo area of the Western Cape, South Africa near Beaufort West. This semi-desert area covers an area of . The Nuweveld portion of the Great Escarpment runs through the Park. It is therefore partly
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