The 'Augusta Highway' is the part of Australia's ring route (Highway 1) located in South Australia between the townships of Port Wakefield and Port Augusta.

It was named 'Augusta Highway' in 2011, and was formerly known simply as 'Highway One' and also as the 'Princes Highway', despite not being continuous to the 'Princes Highway' in the southeast of the state.

Port Augusta is a small city in South Australia. Formerly a seaport, it is now a road traffic and railway junction city mainly located on the east coast of the Spencer Gulf immediately south of the gulf's head and about 322 kilometres (200 mi) north of the state capital, Adelaide. The suburb of Port Augusta West is located on the west side of the gulf on the Eyre Peninsula. Other major industries included, up until the mid-2010s, electricity generation. At June 2015, the estimated urban population was 14,214.

Australia's Highway 1 is a network of highways that circumnavigate the country, joining all mainland state capitals. At a total length of approximately 14,500 km (9,000 mi) it is the longest national highway in the world, surpassing the Trans-Siberian Highway (over 11,000 km or 6,800 mi) and the Trans-Canada Highway (8,030 km or 4,990 mi). A part of the highway network is traversed by over a million people every day.

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