The Myoora Trig is located above the Somersby Water Treatment Plant, which was built in two stages in 1971 and 1986 to treat water from the Mangrove Creek Dam or Mooney Mooney Dam. The trig point consists of a steel post set in a square concrete base, which supports the mast and vanes.
There’s a reasonable view to the south-west towards the Brisbane Water National Park…
…and to the north-east over Somersby, which is a largely industrial area.
Getting to the Myoora Trig
It’s reasonably easy to reach the trig station, from Myoora Road (Somersby). Park near the locked gates to the Somersby Water Treatment Plant, and follow the service trail past an unlocked gate. The trail initially runs along the perimeter of the treatment plant.
The trail heads up the hill , ventually reaching a concrete water reservoir and a wide open corridor for an oil and gas pipeline. The trig is in the middle of this cleared corridor. (Do not be tempted to return by following this corridor, as you’ll hit a barbed wire fence around the treatment plant!).