Namadgi National Park in the ACT and Bimberi Nature Reserve and Brindabella National Park in New South Wales are located in the Brindabella Ranges. The highest mountain in the ACT is Bimberi Peak, which lies above the treeline at 1912 metres, at the northern edge of the Snowy Mountains. The alpine regions are subject to environmental protection, which has limited the scope of commercial development of skiiable terrain, Organised downhill skiing in the ACT was started by the Canberra Alpine Club in 1934, and was for decades centred around Mt Franklin. Since the 1980s, some downhill facilities have existed intermittently at Corin Forest.