Perth - City and Geography

Perth is the capital and largest city of the Australian state of Western Australia and the fourth most populous city in Australia. The Perth metropolitan area has an estimated population of 1,659,000.The
metropolitan area is located in the South West Division of Western Australia, between the Indian Ocean and a low coastal escarpment known as the Darling Range. The central business district and suburbs of Perth are situated on the banks of the Swan River.

Perth became known worldwide as the "City of Light" when city residents lit their house lights and streetlights as American astronaut John Glenn passed overhead while orbiting the earth on Friendship 7 in 1962. The city repeated the act as Glenn passed overhead on the Space Shuttle in 1998. Perth is tied for eighth place in The Economist's 2010 list of the World's Most Livable Cities.
Perth is set on the Swan River, named after the native black swans in 1697 by Willem de Vlamingh, captain of a Dutch expedition and namer of WA's Rottnest Island. Traditionally, this water body has been known by Aboriginal inhabitants as Derbal Yerrigan. The city centre and most of the suburbs are located on the sandy and relatively flat Swan Coastal Plain, which lies between the Darling Scarp and the Indian Ocean. The soils of this area are quite infertile.

The metropolitan area extends to Yanchep in the north and Rockingham to the south, total distance of approximately 90 kilometres (56 mi). From the coast in the west to Mundaring in the east is a total distance of approximately 50 kilometres (31 mi). The Perth metropolitan area covers 5,386.4 km². The coastal suburbs' placement is advantageous due to proximity to Perth's oceanside location and clean beaches. To the east, the city is bordered by a low escarpment called the Darling Scarp. Perth is on generally flat, rolling land — largely due to the high amount of sandy soils and deep bedrock. The Perth metropolitan area has two major river systems; the first is made up of the Swan and Canning Rivers. The second is that of the Serpentine and Murray Rivers, which discharge into the Peel Estuary at Mandurah.