This study of Palaeolithic Africa, an interim report, describes a large number of sites in the region of the Zebra River, Western Namibia. After the Introductory Sections, a complete list of all sites is given in Section 4, presenting the raw information gathered in the fieldwork. The interpretation of these data is then discussed on a site-by-site basis in Section 5. Here, specific topics which relate to more than one site are considered when they first arise, while other more general topics are discussed subsequently under separate headings. Cross-references are liberally provided in the text. Finally Section 6 draws the threads together and offers a wider comment on the way forward for surface studies for earlier Palaeolithic archaeology. Artefacts deemed worthy of further study, which were usually photographed, measured and given GPS locations, were given sequential numbers and are fully listed in Appendix 1. A summary table of artefacts for each major site collected or recorded during fieldwork is given in Section 4, including a table of the 'numbered' artefacts, by type, to which other recorded artefacts are sometimes added, as noted in the individual tables.