A Germanic settlement at Heeten, which was only partly excavated, produced evidence for large-scale iron production. Combining several research methods, an attempt was made to gain insight into the operation, scale, and structure of this production. The research was not only focussed on the excavation area itself, but also on the surrounding area. Apart from X-ray combined with sieve-residue analysis of soil-samples (taken primarily for archaeo-botanical purposes), core sampling and geoprospective explorations were carried out. The aims of these investigations were not only of scientific relevance, but can also contribute to the protection and management of the remaining part of the site.