The Far North is a large region of South Australia close to the Northern Territory border. Colloquial usage of the term in South Australia refers to that part of South Australia north of a line roughly from Ceduna through Port Augusta to Broken Hill. The South Australian Government defines the Far North region similarly with the exception of the Maralinga Tjarutja Lands. the Yalata Aboriginal Reserve and other unincorporated crown lands in the state's far west, which are officially considered part of the Eyre and Western region.