Ancient iron metallurgy in sub-Saharan Africa has been the focus of interest of several disciplines. - Timpoko Helène Kienon-Kabore

Archaeological and historical remains are visible material witnesses of the steel industry. They bear witness to this technical history ranging from the remains of the search for raw materials to the obtaining of finished products.

On the edge of the modern village of Doumbala lies a large area of metallurgical activity with around fifty slag heaps.

During the colonial period, circle monographs, reports by colonial administrators, geologists, amateurs, etc. also provide information that can often prove decisive in the collection of preliminary data. Within these, metallurgist sites are often indicated on maps and photographs. Authors also describe metallurgical industries. This approach most often allows for the establishment of an initial general mapping of archaeological sites and thus an assessment of the wealth of metallurgical sites in the study area in order to prepare field surveys.