The outlet of the Ancylus Lake in central Sweden has been investigated morphologically and chronologically by Munthe (1927), von Post (1928) and Maj-Britt and Sten Florin (1944). However, the results of these investigations did not complement each other. Munthe and von Post linked the Svea River with the earliest phase of the Ancylus Lake, while Sten Florin considered that the Svea River must have been formed earlier. Different shoreline connexions with Degerfors, where the Svea River entered the western ocean, have also contributed to the different interpretations of the Svea River's position in time.