The Eyre Highway runs west to east (and vice versa) from Norseman in Western Australia to Port Augusta in South Australia. It is 720 kilometres from Norseman to the Western Australia/South Australian border and a 7.3 hour drive. It is another 950 kilometres from the Western Australia/South Australia border to Port Augusta and a 9.30 hour drive. Carry plenty of water when you travel this highway because not all the roadhouses can supply you with this precious commodity. Carry the basic vehicle spare parts as well.