Sledgehammer was first performed live in 1998.
Today the Northern Territory 's land borders are defined to the west by the 129 ° east longitude -LRB- 129 ° east -RRB- with Western Australia , to the south by the 26th parallel south latitude -LRB- 26 ° south -RRB- with South Australia and to the east by 138 ° east longitude -LRB- 138 ° east -RRB- with Queensland ; however , this is not where all borders are actually marked on the ground .. Northern Territory. Northern Territory. longitude. longitude. Western Australia. Western Australia. 26th parallel south. 26th parallel south. latitude. latitude. South Australia. South Australia. Queensland. Queensland. The Northern Territory boundaries are shared with the West Australian border , the South Australian border , and the Queensland border .. Northern Territory. Northern Territory. Queensland. Queensland. West Australian border. Western Australia border. South Australian border. South Australian borders. Queensland border. Queensland borders