Trans Karoo Express Trans Karoo Express The Trans Karoo Express, or simply Trans Karoo, was a South African express passenger train service which travelled an approximately journey between Johannesburg and Cape Town. It operated daily in each direction, meaning that there were in fact two "Trans Karoos" - they passed each other during the night, heading in opposite directions. The service was operated by Spoornet, the national railway company. The "Trans Karoo" was named from the Great Karoo scrubland, one of the most extensive geographical features of southern Africa, across which the train operated. The route was identical to that operated by the
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