The Barrier Highway is a major road in South Australia that connects the towns of Port Augusta and Broken Hill. It serves as a vital transport route for both freight and travelers, facilitating access to the Outback and various regional areas. The highway is approximately 500 kilometers long and is part of the larger network of highways in Australia. Originally established in the 19th century, the Barrier Highway has undergone several upgrades to improve safety and efficiency. It passes through diverse landscapes, including arid regions and agricultural land, showcasing the unique environment of the Australian interior.