South African wine and Chenin blanc. The cool climate Overberg region has been the site of the most recent interest and development in the South African wine industry, particularly with increased plantings of Chardonnay and Pinot noir. The entire area received very little attention until the late 20th century and was not even classified in 1973 within the original Wine of Origins programme. The maritime climate of Walker Bay and the cool, higher elevation vineyards of Elgin located east of Cape Town, have had success producing these varietals as well as Sauvignon blanc. The "Klein Karoo" region (meaning Little Karoo) has a semi-desert
Karoo Group (i.e. the oldest layer of the Cape Supergroup). The valley floor is covered, in the main, by the next (younger) layer of the Supergroup, namely the much softer Bokkeveld shales. The dolerite of the Great Karoo did not penetrate these rocks, so Karoo Koppies are not seen in the Little Karoo. The Little Karoo contains two other geological features that give the landscape a special character. During the erosion of the African interior following the bulging of the continent during the massive lava outpourings that ended the Karoo sedimentation 180 million years ago, some of the eroded material was