Zero Obelisk, survey marker on the east bank of the Warrego River
The Zero Obelisk is a survey marker in Queensland located on the east bank of the Warrego River at Barringun. Made of concrete and stone in the shape of a truncated pyramid, it stands about one yard across and marks the starting point for the border survey between Queensland and New South Wales.
Built in 1879, the marker served as the starting point for the border survey between Queensland and New South Wales. Surveyor JB Cameron led the expedition westward for over 200 miles, completing the work in more than a year to establish clear boundary lines between the two colonies.
The site sits in a remote location near the Warrego River and is accessible to visitors interested in history and surveying. The open landscape means preparation for travel to this rural area is useful before making the trip.
Surveyor JB Cameron, who was born in Scotland, carved his name on a wooden post by the river to mark the completion of the border survey. He later traveled to New Guinea where he continued significant surveying work before passing away in Brisbane at the end of the century.
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