Nyaania Creek

It is a seasonal tributary that flows into the Helena River with a catchment that moves through a number of hills suburbs just east of the Darling Scarp.

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: It has significant areas of reserves either adjacent, or within 100 metres (330 ft) either side of its main creek bed.

The upper portion of the creek has the Strettle Road Reserve on its north side - which is at the west end of Mahogany Creek which although completely a regenerated plot of land following extensive firing and logging in the last hundred years is a significant reserve.

The locality earned the name in the Perth newspapers of the 1880s as The Devil's Terror and they cite the example of workers sinking in mud.

That section of the railway had to be resurveyed and was shifted 100 metres south along the bed of Nyaania creek.