Cockburn, South Australia
Cockburn ( ) is a town and locality in the east of the Australian state of South Australia immediately adjacent to the border with New South Wales near Broken Hill. It was established because the New South Wales government refused to allow locomotives of the South Australian Railways to operate in its jurisdiction, requiring locomotives to be changed at the town for 84 years until 1970, when the route was converted from to standard gauge. Huge ore deposits were discovered in Silverton, which in 1884 prompted the government of South Australia to offer to the Government of New South Wales the building of a narrow gauge railway line from the limit of its jurisdiction at the border to Silverton, since horse-drawn drays over rough tracks could not meet the transport task for the journey to Port Pirie. This offer was rejected by the New South Wales government. In response, investors formed the Silverton Tramway Company in 1885 to build the railway line from Silverton to the border. The town of Cockburn came into existence in 1886 on the South Australia side of the border as a place for trains to exchange locomotives and crews. On the New South Wales side