Stories are manifold of the great springbok migrations in the South African Free State and up the Karoo towards the end of the 19th century, a migration (or trek) that involved many thousands of springbok and formed herds of several kilometres wide. Farmers and hunters of those times told of spurring on their horses in order to get out of the way of the masses of these “trek-bokke”. In Lawrence Green’s book Karoo an incident is related of how a Karoo farmer, Gert van der Merwe, moved his sheep and cattle between grazing lands, assisted by his shepherds and a Khoi wagon leader. “The trek-buck are on their way, and we’ll be trampled to death if we stay in the riverbed”, the driver warned when only a cloud of dust was visible in the distance.