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We mapped the super-highways the First Australians used to cross the ancient land

Author provided We used this digital elevation model to understand what was visible to early travellers. Essentially, from each point in the continent we asked “what can you see from here?” This moving window calculates the largest “viewshed” map ever created. When our virtual travellers move, they reorient based on visible terrain everywhere they go. The figure above shows the prominence of features across the continent as increasingly yellow shades against the blue background. You can clearly make out features such as the the New Guinea Highlands, the Flinders Ranges in South Australia, the Great Dividing Range in the east, and the Hamersley Range in the Pilbara region of Western Australia.

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