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The Coastline of Western Australia is a significant portion of the coastline of Australia. The total length is 59,736 (mainland length 35,877 km (22,292 mi)), with the Western Australian coastline being 12,889 km and including islands 20,781 km.〔http://www.ga.gov.au/education/geoscience-basics/dimensions/coastline-lengths.html Coastline lengths〕 The earliest full charting of the coastline occurred during exploration in late eighteenth and early nineteenth centuries. The coastline has some features or organisms that are found on the entire length,〔 〕 while some others are specific to coastal regions. Due to its length, various government map posters have been created over time, that have examples of coastal form, or types of coast such as the 1984 map with photos. ==Notes== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Coastline of Western Australia」の詳細全文を読む スポンサード リンク
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