The Trans-Australian Railway: Connecting Port Augusta to Kalgoorlie

The Trans-Australian Railway spans 4,780 kilometers (2,970 miles) across the continent's southern interior, linking Port Augusta, South Australia with Kalgoorlie, Western Australia.

Completed in 1917, this standard-gauge line unified Australia's disparate railway systems, ending the need for passengers and freight to change trains at state borders. The route crosses the Nullarbor Plain—home to the world's longest straight railway stretch (478 km)—and traverses some of the continent's most arid, isolated terrain.

Originally built to fulfill a federation promise to Western Australia, the railway remains a vital freight corridor for iron ore, grain, and intermodal containers. The Indian Pacific passenger service still traverses the line, offering one of the world's great transcontinental rail journeys.