The data that will be discussed come from two important French archaeological sites, excavated by Jean- Louis Voruz, the Gardon cave and the open air settlement of Saint-Alban. The first one was occupied from Early Neolithic until the Middle Ages, the second one from the final Bronze Age until the Middle Ages. The micromorphological study of these sites first led to preliminary interpretations. These results then were compared with other archaeological and archaeozoological data. This integration of diverse results led to the confirmation, specification or reconsideration of the first micromorphological interpretations. Examples are given of various deposits, resulting from different human activities, such as construction, stock farming or items produced after the settlements were abandoned. The stratigraphic and micromorphological study of the Gardon cave allowed us to correlate some deposits with climatic fluctuations and to address environmental and archaeological questions.