South Western Highway
South Western Highway
South Western Highway is a highway in the South West region of Western Australia connecting Perth’s southeast with Walpole. It is a part of the National Highway 1 network for much of its length. It is about 406 kilometres (252 mi) long. From Perth, the highway, signed as State Route 20, starts from the Albany Highway junction in Armadale, 28 km from Perth, and follows a north-south route 20–30 km inland from the coast.
