Van Darwin naar Perth meer dan 4000 km

The Great Northern Highway is a generally north-south Western Australian highway which links the state's capital Perth with its most northern port, Wyndham. It is 3,204 kilometres (1,991 mi) in length, with 3,144 kilometres (1,954 mi) being National Highway. It is constructed as a sealed, predominantly 2-lane single carriageway (excluding a number of single lane bridges in the Kimberley).

This highway is the longest intrastate highway in Australia and also the longest Australian highway in absolute terms. In parts, it is among the remotest sealed roads in the world. Some sections are several hundred kilometres in length without so much as a roadhouse. Economically, it is a vital link as it provides access to the resource rich regions of the Pilbara and Kimberley. In these areas, the key industries of mining, pastoral stations and tourism are all dependent on the highway.