y2019m01b02 20190122083000 assa sbonga@assaf.org.za assa South African Journal of Science S. Afr. J. Sci 1996-7489 01302019 115 1/2 Konstantinos S. Papadimitrios Department of Earth Sciences, University of Toronto, Ontario, Canada Carl-Georg Bank Department of Earth Sciences, University of Toronto, Ontario, Canada Steven J. Walker Department of Archaeology, University of Cape Town, Cape Town, South Africa Michael Chazan Department of Anthropology, University of Toronto, Ontario, Canada Institute of Evolutionary Studies, University of the Witwatersrand, Johannesburg, South Africa In order to investigate the buried landscape at the Fauresmith locality of Bestwood 1, outside the town of Kathu in the Northern Cape Province, we performed ground-penetrating radar and magnetometry surveys across the sand-filled central portion of the valley. The radar images a strong continuous reflector which we can assign to the boundary between the Kalahari sands and underlying Banded Ironstone Formation gravels. Moreover, the thickness of the sand delineates a buried depression in the centre of the valley with flat plateaus at the sides. Subtracting the sand thickness from the current topography produces a map of a small stream channel in the northern part of the valley. Analysis of the magnetic gradient data allows us to extend this buried channel further to the south. Our geophysical survey provides a valuable contribution towards understanding the context of hominin occupation along the banks of a small stream in the Kathu Complex. Significance: • We provide an example of combining two geophysical methods to map overburden thickness, useful for archaeological landscape interpretation. 01302019 1 10.17159/sajs.2016/crossmark sajs.co.za false 2017-03-16 2018-10-06 2019-01-30 https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ 10.17159/sajs.2019/4793 20190122083000 https://www.sajs.co.za/article/view/4793 https://www.sajs.co.za/article/view/4793/7413 https://www.sajs.co.za/article/view/4793/7413 https://www.sajs.co.za/article/view/4793/7413 https://www.sajs.co.za/article/view/4793/7413 https://www.sajs.co.za/article/view/4793/7413 https://www.sajs.co.za/article/view/4793/7413 https://www.sajs.co.za/article/view/4793/7413