 From ancient times "Aurlandsdalen" thus was one of the most important connections between Vestlandet and Østlandet.It was only recently that it became possible to drive cattle along the valley floor, made possible by blasting of a new passage, "Sinjarheimsgaldene", in the cliff face at the "Sinjarheim" farm in 1870 and at "Nesbøgaldene" in the 1930s.Before 1930 cattle had to be driven over the mountain from "Nesbø" to "Østerbø".