The Victoria Highway links the Great Northern Highway in Western Australia with the Stuart Highway in the Northern Territory. The highway is a part of the Perth - Darwin National Highway link. It is signed as National Highway 1, and is part of Highway 1, a circular route around the country. It is 555 kilometres (345 mi) long, and most of the route – some 470 kilometres (290 mi) – lies within the Northern Territory. In some areas it runs in parallel with the Northern Territory's Victoria River, from which its name originates.