In 2011 and 2012, Dr Gerry Wait (then Nexus Heritage) and Dr Ibrahima Thiaw (Institute Fundamental d'Afrique Noire: IFAN, Dakar) undertook an Environmental and Social Impact Assessment (ESIA) project in Kouilou Department in the southwest region of the Republic of the Congo. The initiative had been commissioned by SRK Consulting UK for Elemental Minerals Ltd relating to a proposed potash mine. These landscapes were little known in terms of the sites and monuments from the distant and more recent past. That the area was important in the understanding of migrations along the African coast had...