Climate was arctic at this time.Temperature averaged only twelve degrees Celsius in July. Central and northern Sweden was covered by a vast inland ice.
An arctic tundra spread out over southern Sweden for miles, a wide open landscape with sparse vegetation, dominated by sedge, grass, dwarf birch, willow, lichen and moss. Mountain birches stood in small clumps.
Small patches of colour contrasted a mainly single-coloured vegetation. It was arctic flowers, purple saxifrage, white mountain avens and, oddly, some now southern species, like the blue cornflower and the yellow hoary rock-rose.
Large grazing mammals, such as wild reindeer, elk and wild horses were common. They were early immigrants in Sweden, with an ability to adapt to the challenging cold climate.