The Eastern Kalvehøgde and the Mugna summit were both climbed in 1820 by the two students Balthazar Mathias Keilhau and Peter Christian Bianco Boeck, both later prominent scientists at the university of Christiania. This is considered to be the first real mountain expedition in Norwegian history, and these summits were the first to be climbed by the two friends. The rest of the summits have unknown first ascents.