Western Port topographic map
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About this map
Name: Western Port topographic map, elevation, terrain.
Average elevation: 35 m
Minimum elevation: -1 m
Maximum elevation: 298 m
Formerly a major river drainage system, it was inundated together with Port Phillip by the rising sea in the Holocene period; the Western Port sunkland now forms an extensive tidal bay. The waters of Western Port cover an area of 680 km² of which 270 km² are exposed as mud flats at low tide. The topography of Western Port is dominated by two large islands: French Island and Phillip Island. The coastline, including that of the islands, is some 263 km. The bay and its islands are criss-crossed by seven seismically active fault lines and experiences numerous minor earthquakes every year.
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