many years of archaeological research near Ulów in the middle Roztocze contributed to the discovery of a multicultural settlement complex, functioning from the Palaeolithic to the 17 th /18 th century, refuting the existing myth of Roztocze as a white spot on the map of prehistoric settlement. The results of an archaeological research became the basis for the implementation of the project "Roztocze-the ancient terra incognita? (Settlement micro-region in the area of Ulów in middle Roztocze in the prehistory and its background. Interdisciplinary studies)". Comprehensive and interdisciplinary research has enabled the reconstruction of settling processes in the micro-region of Ulów in prehistory and in the modern Age. The main reason for the rise of a multicultural enclave, encompassed by areas devoid of traces of the prehistoric settlement, should be seen in the favourable environmental conditions. many aspects of the ritual and everyday life of particular archaeological cultures populations recorded in Ulów, do not find analogies in other areas of Poland. A series of several dozen radiocarbon dates confirmed all the stages of the Ulów micro-region settlement recorded in the archaeological sources. It also highlighted a whole range of the problems related to the interpretation of some cultural phenomena, especially with regard to the intensive settlement of the Corded Ware culture and the Wielbark culture, as well as the early phase of the migration Period and initial phases of the early middle Ages.