Of the two highest points, the southern peak lies on a glacier situated on a rocky plateau. The glacier has shrunk in recent years, and therefore the summit is not as high as earlier. The top was traditionally said to be , and higher in the oldest measurement, i.e. . If the melting continues at the same rate, the south peak will sink below the north peak (which is the highest "fixed" point in Sweden) within a few years' time. However, as of July 2015, Tarfala Research Station reports that the glacier has grown by — from its lowest measurement of the previous year.