Gudenus Cave summarises the author's 60 years of research (1962 to 2021) at the earliest human occupation site known in Austria. The cave had been excavated in 1883-84 without separation of sediment layers, and subsequent endeavours to clarify its stratigraphy and dating have failed. The book describes the strategies and methods of studying a Pleistocene cave site that had been regarded as fully excavated, and their long-term applications. A significant part of the fieldwork was conducted before 1967, but the use of analytical processes and literature review continued for several decades after that. Through sustained interrogation of the site's clear palynology and lithic typology, the volume succeeds in clarifying the cave's stratigraphical sequence and placing its several Palaeolithic occupations chronologically. This has significant effects on our understanding of the local Palaeolithic sequence that has been the subject of various controversies. These are discussed in the concluding chapter, which places Gudenus Cave first within its Austrian context and then into the wider picture. The book thus shows that intensive archaeological research can reinstate the scientific importance of a site even after it has been declared bereft of all sediment.