From an old Kodachrome slide taken in 1966. The most convenient mountains to Mawson were the North Masson Range, some 24km inland up the plateau. At this point the ice was about 300 metres above sea level and the mountains rose maybe as much again. This was taken not long after our arrival at Mawson, when a group of us took a day's outing there to familiarise ourselves with the area and the vehicles (including a dog team).