Abstract
ABSTRACTWe report an unusual example of rock engravings in an open context in the Highlands region of Papua New Guinea. The highly weathered assemblage comprised a cluster of two “cup and ring” motifs with at least eight additional cup marks pecked on a small basalt boulder located on the summit of Ambra Crater (also Mt. Ambra), a potentially significant place because it has provided an elevated viewpoint across the denuded Upper Wahgi Valley landscape for millennia.
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