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:
The Long trig station is visible from the Long Trail, about 900m before the end of the track.
- National Park: Duffys Forest & Terrey Hills, Ku-ring-gai Chase NP
- Serial number: TS2882
- Elevation: 208m
- End of Cullamine Road (near junction with Bulara St)
- 33°38’13.7″S 151°10’37.2″E
While the original Lucy Trig in Hunt Reserve is no more - it was replaced by a brass plug - the trig station has sign explaining its history.
- Serial number: TS2904
- Elevation: 197.6m
- Hunt Reserve in Mount Colah
- 33°39'50.0"S 151°07'21.1"E
The Macintosh Trig (also referred to as the McIntosh Trig) in Ingleside is reached by a short and pleasant bushawalk, with some nice views from a nearby rock platform.
- Serial number: TS3025
- Elevation: 165m
- Trail from end of Walter Road.
- 33°39'55.4"S 151°16'43.0"E
One of the first trig stations established in Sydney's north, the Manly Trig on Beacon Hill offers oustanding views over the northern beaches and the city of Sydney.
- Serial number: TS2962
- Elevation: 155m
- Turnout along Warringah Road, Beacon Hill
- 33°45'14.4"S 151°15'50.9"E
McCarr Trig is reached by a short scramble up from West Head Road, past oast some rock formations. The trig point is partly destroyed.
- National Park: Ku-ring-gai Chase NP, West Head
- Serial number: TS3015
- Elevation: 196m
- Off-track from West Head Road, near the start
- 33°39’07.4″S 151°15’40.7″E
A 1973 replacemenf of the original trig station, McComb Trig is intact but not in great condition. It's reached via a short bushwalk.
- Serial number: TS6234
- Elevation: 81m
- Trail from end of Gibbs St, Manly Vale (next to Manly Vale Public School)
- 33°47'01.5"S 151°15'29.2"E
Accessible from the Chiltern Trail or from Chiltern Road, a short climb gets you to the McCowen Trig Station. There's some filtered views from the trig station.
- National Park: Duffys Forest & Terrey Hills, Ku-ring-gai Chase NP
- Serial number: TS3018
- Elevation: 184m
- Chiltern Trail from Chiltern Road
- 33°40’09.8″S 151°15’50.4″E
The original Millicent trig station is destroyed, but was replaced in 1974 with a concrete pillar.
- Serial number: TS3112
- Elevation: 230m
- Take service trail from electricity substation on Pacific Highway
- 33°35'05.8"S 151°10'45.7"E
Great views from the Narrabeen Trig Station, which is easily accessible via a service trail from Deep Creek Reserve.
- National Park: Garigal National Park
- Serial number: TS3329
- Elevation: 135m
- Slippery Dip Loop firetrail, from Deep Creek Reserve (Narrabeen)
- 33°42’35.0″S 151°15’51.4″E
Over ten metres in height, the Obelisk Trig at North Head was constructed around 1809 as a navigational aid for ships.
- National Park: Sydney Harbour National Park
- Serial number: TS3597
- Elevation: 72m
- 33°49'08.4"S 151°17'37.4"E
Just the concrete base remains from the Pittwater trig station, which is hidden in the bush a short distance from the base of a couple of radio towers.
- National Park: Garigal National Park
- Serial number: TS6957
- Elevation: 217m
- Access from Mona Vale Road - driveway just before Kimbriki tip turnoff if travelling towards Mona Vale
- 33°41'08.5"S 151°14'03.1"E
The Pogson Trig is a solid but rather uninspiring concrete plinth, near the junction of the Pogson Trig Trail and the Quarry Firetrail.
- National Park: Berowra Valley National Park
- Serial number: TS3765
- Elevation: 217m
- End of Quarry Road, Dural
- 33°41’32.1″S 151°04’17.4″E
Only the concrete base of the Quarantine trig station remains, just behind the Close Defence Observation Post at North Head.
- National Park: Sydney Harbour National Park
- Serial number: TS3818
- Elevation: 104m
- 33°48'54.1"S 151°17'55.5"E
There's almost northing left of the Roach Trig, which is is one of the highest trig points in Ku-ring-gai Chase NP.
- National Park: Duffys Forest & Terrey Hills, Ku-ring-gai Chase NP
- Serial number: TS3914
- Elevation: 223m
- End of Cullamine Road (near junction with Bulara St)
- 33°39’00.5″S 151°10’57.9″E
The partly-destroyed Ryland Trig Station is reached by a short but somewhat arduous bush-bash along a ridge from the Ryland Trail.
- National Park: Duffys Forest & Terrey Hills, Ku-ring-gai Chase NP
- Serial number: TS3991
- Elevation: 190m
- Cooyong Neverfail Trail from Mona Vale Road
- 33°41'36.7"S 151°11'41.9"E
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