Poeppel Corner, Tripoint marker in Simpson Desert, Australia.
Poeppel Corner is a survey marker in the Simpson Desert that shows the exact spot where Queensland, South Australia, and Northern Territory meet. The stone stands in the middle of the remote desert landscape as a physical reminder of where these three borders come together.
Augustus Poeppel established this border point in 1880 during colonial survey work that defined Australia's state boundaries. Early measurements needed correction later to confirm the precise location of this three-territory intersection.
The survey teams relied on Aboriginal knowledge to locate water sources while traversing the remote desert landscape during the border demarcation process.
Reaching this location requires a capable off-road vehicle and careful planning, as it lies more than 170 kilometers from the nearest town. The desert journey takes many hours and offers little shelter or water supplies along the way.
At this spot, three Australian time zones meet in an unusual way that creates a special phenomenon. Visitors standing here can experience three different local times within a few minutes, making this one of Australia's most unusual geographical points.
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