Nation groups have been trading tools and resources in vast networks across the entire landscape for thousands of years.
Sought after goods include boomerangs, stone axes, ochre, pear shells, spinifex resin, feathers, didgeridoos, whale meat, possum skin rugs and cloaks, bone ornaments and even hair.
Sometimes, they’re traded several times through different nations.
On long journeys, a stone axe head might be wrapped in paperbark to protect it for trading.
Trade routes are also used to exchange ceremony, ritual, song, dance and knowledge between different groups.