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''Nyaania was also a stopping place and locality name (31° 54′ S, 116° 06′ E) associated with the ''first route'' of the Eastern Railway between Bellevue and Mundaring in Western Australia'' ==Significance== Nyaania Creek (31°55′S, 116°03′E) is an important tributary seasonal creek that flows into the Helena River with a catchment that moves through a number of hills suburbs just east of the Darling Scarp. Its source is in Mahogany Creek, and it flows through Glen Forrest, Darlington, and Boya before meeting the Helena River at Helena Valley. It was originally known as the ''Smiths Mill Brook'' on maps between 1902 and 1920. In the 1920s it became known as ''Nyaania Brook'', and in 1945 it officially took the current name. Its importance stems from the fact that it flows through private land for most of its length, linked to issues that affect watercourses in the Darling Scarp region: * usages of herbicides and other contaminants that can become waterborne * excess nutrients from fertilisers used in domestic gardens * inappropriate exotic weeds that flourish in difficult to access locations. It has significant areas of reserves either adjacent, or within 100 metres either side of its main creek bed. It runs in a number of places along what was rail reserve of the Eastern Railway - which is now the southern part of the Railway Reserve Heritage Trail. 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「Nyaania Creek」の詳細全文を読む スポンサード リンク
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