There are hundreds of trig stations across Sydney’s north and north-west, from remote parts of national parks to suburban locations. You might be surprised to find a trig point hidden away in your suburb! Some of the best-preserved trig stations are easily reached near residential developments.
Historical trig stations in Sydney’s North explores the 80-odd trig stations built in the 1880s and the history of trigonometric surveying to the north of Sydney.
For some of the more challenging-to-reach trig stations, have a look at:
Hidden in thick scrub near Mona Vale Road in Ingleside, only the stone cairn of the Addison Trig remains.
Just a few rocks remain of the Allison Trig Station; the post and vanes have disappeared.
The Arden Trig Station is on a spur off the Waratah Track. Great views from the trig and nearby.
The Arthur Trig Station is stil in pretty good condition; it is located just off the Mount Murray Anderson bushwalking track.
Probably the most unusual trig station in Sydney, the Bahai Temple is an officially recognised trigonometric point, which is visible from a long way away.
The Bairne Trig Station is reached by a somewhat challenging scrub-bash from the Bairne Track No views, but there is a nearby Aboriginal engraving site.
Replacing the original Bantry Trig which was constructed in 1881, the current trig is on top of a water reservoir in a restricted area.
There’s no trace left of the Barbara Trig Station, which would have been just off Depot Road, near the National Parks and Wildlife Service Depot in Mount Colah.
The Barrenjoey Trig Station is hidden in thick bush not far from the Access Trail up to Barrenjoey Head. There’s a nice from the trig, which was the location of one of the original lightstations.
Located on top of a water reservoir in Berowra, the Berowra Reservoir Trig can only be seen from the road below.
One of two trig stations on Blue Fish Point, the Blue Fish 1 trig is located right on the edge of the cliff below a WWII radar installation.
Not far off the Bobbin Head Trail is the Bobbin Trig Station. It’s partly demolished, although much of the stone cairn remains.
Boundary Trig is in good condition and is relatively easily reached - but doesn't have any view or offer any compelling reason to visit...
The Campbell Trig, located just off the Old Northern Road in Glenorie, is still in good condition and easily reached.