Qualla: Zero Obelisk

Zero Obelisk: Introduction

Mon, 22 Jun 2026 00:00:00 GMT

Every long line has to begin somewhere. The border between Queensland and New South Wales runs west for more than a thousand kilometres, an arrow-straight cut along the 29th parallel all the way to the corner where three states meet. Most people who cross it never think about where that line starts. The answer sits on the east bank of the Warrego River, just north of the tiny settlement of Barringun: a truncated pyramid of stone faced in concrete render, not much taller than a person, weathered the colour of the surrounding dust. It is called the Zero Obelisk, and the name is exact. This is point zero - the origin from which the entire border survey was measured, the fixed mark that turned an idea on a map into a line on the ground.

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Zero Obelisk: Drawing a Line Through Nothing

Mon, 22 Jun 2026 00:00:00 GMT

By the 1870s the boundary between New South Wales and Queensland existed in law but barely in fact. Out here it was a notion, not a marked line, and that ambiguity had real consequences. Which colony could tax a run of cattle, license a hotel, or claim a tract of grazing country ...

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Zero Obelisk: Stars Over Barringun

Mon, 22 Jun 2026 00:00:00 GMT

There was no satellite positioning in 1879, no way to simply read a coordinate from a device. To know where they stood, the surveyors had to read the sky. At the Barringun telegraph station they took astronomical observations - timing the passage of stars, measuring angles agains...

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Zero Obelisk: The Men Who Carried the Chain

Mon, 22 Jun 2026 00:00:00 GMT

The work was divided between colonies and between skills. John Brewer Cameron, a Scottish-born trigonometrical surveyor representing New South Wales, took charge of the astronomy - finding true meridian, setting true bearings, fixing latitude at every suitable site. Alongside him...

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Zero Obelisk: What Survives

Mon, 22 Jun 2026 00:00:00 GMT

More than a century on, the survey those parties completed in 1879-80 still defines the border, and the Zero Obelisk remains one of the very few physical reminders of the undertaking. It was added to the Queensland Heritage Register in 1992, recognised not for grandeur - it has n...

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