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:

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