When seen from above, the arid west coast of South Africa exhibits some extraordinary markings. Clustered between the small towns of Koingnaas and Kotzesrus, vast patterns, often kilometres long, present a variety of shapes and configurations that seem to defy interpretation. These are not the designs of an ancient civilisation or extra-terrestrials, they're fields ploughed by local sheep farmers who grow wheat and barley here to feed their livestock. Level ground and soft soil are the required ploughing conditions and bands of natural vegetation are left untouched in between the worked strips. This last step is to prevent the topsoil from being blown away by the summer winds if the rain doesn't fall. A average decrease in rainfall in the last half century means that many of these fields are no longer used anymore and are slowly returning to their natural state.