"Rock art and long-distance prehistoric exchange behavior: A case study" by Roxanne Tsang, William Pleiber et al.
Since 1909, patrol officers, anthropologists, archaeologists, and others have identified evidence of a pre-contact trading network linking New Guinea with the Torres Strait. Current research in the Lower Sepik River Basin reported various ethnographic descriptions relating to cultural material objects stenciled on various rock art sites in Auwim, Upper Karawari-Arafundi region, East Sepik, Papua New Guinea (PNG). In addition to the rock art, the broader area has one of the most environmentally intact freshwater basins with lowland rainforests in Melanesia, and is famous for its architectural c...
Source: uow.edu.au