The fourth and final Pleistocene glaciation in the European Alps, c 110,000/70,000-10,000 years ago, ending with the onset of the postglacial Holocene. The Würm glacial stage followed the Riss-Würm interglacial and is correlated with the Weichsel glacial stage of northern Europe and the Wisconsin glacial stage of North America. It is divided into early, middle, and late phases. The end of the Würm and the retreat of the final glaciers was a complex of minor retreats and advances.