along the bed of Nyaania creek. The creek above Glen Forrest was diverted into Chittawarra Brook while a dam was thrown across the creek just to the west of Glen Forrest to hold back the water while a man made channel was built to replace the original creek bed. On completion of the channel the dam wall was breached and Nyaania Creek was allowed to run into the new channel. As a result of this construction the creek bed now runs along the top of the 3 to 5 meter deep cutting. In winter the water can be heard rushing just above ones head as they walk through the cutting. For the duration of the Eastern Railway route usage (1880s to 1953) the Nyaania Creek/Eastern Railway/Devil's Terror location point of coincidence has had springs under or next to the railway line. The sleepers and rails were removed in the mid 1960s, and ever since they have subsisted even when the Nyaania Creek is dry in the middle of a drought. Many users of the subsequent Railway Reserve Heritage Trail have had a particular attraction to their persistence. Lower reaches Having passed through the built up area of Darlington it proceeds into a steep valley south of the riding school in Glen Road, and enters Helena River in Helena Valley. Rehabilitation In the 2000s surrounding bushland was focused as rehabilitation areas. Notes References Watercourses of Western Australia Darling Range Darlington, Western Australia Eastern Railway (Western Australia)