The Powerline trek follows the service track for the powerlines between the valleys from Mundaring to York. This is a popular trek with locals as it contains numerous obstacles of varying degree of difficulty and is not far from Perth. If you're looking for a secluded bush drive, this one might not be for you. Of course, this is also a great trek to undertake on your own to test out your skill and you vehicles set-up, with plenty of chicken tracks should the obstacles bet too adventurous for you abilities.

The route has a series of steep valleys and the views at the top of each crest are simply amazing. The flora changes considerably from the winter season, when things are wet, slippery, muddy and very boggy, to the summer season when things are bone dry and rutted due to serious erosion caused from the previous winter. The vegetation includes tall eucalypts, cycads and various heath scrubs and the soils vary from sands to clay with the colours changing from white to red. Local wallabies are often sited, particularly during cool and overcast days.

Each year, and throughout the year, this trek changes considerably due to the effects of weather and the fact that the council actually put a fair bit of maintenance work into this track. None of this actually affects the trek as such, but affects the degree of difficulty, or ease, that you will experience in completing the trip.