abstract:Yorke Island (Masig Island) is a coral cay situated in the Eastern area of the central island group in the Torres Strait, at the top end of the Great Barrier Reef and Northwest of the tip of Cape York Peninsula in Queensland, Australia. It lies Northwest of Coconut/Poruma Islandin the central island group and Southwest of Stephens Island/Ugar Island, West of Darnley Island/Erub Island, and Northwest of Murray/Mer Island in the eastern island group.