Abstract. During excavations for a purification plant in Rahden-Welle lower terrace depositions of the „Kleine Aue" were found. Meltwater layers of probably Saalian age were overlain by peaty, silty and sandy depositions. Pollenanalytical investigation of the peat records the dominance of grass, pine and birch in the scenery. Together with considerable amounts of heliophytes the pollen assemblage indicates an Herning stadial age (early Weichselian) of the investigated layer.