Barrow Island is a 202-square-kilometre island 50 kilometres northwest off the Pilbara coast of Western Australia. The island is the second largest in Western Australia after Dirk Hartog Island. The island was visited by Indigenous Australians approximately 4,000 or more years ago. It separated from the mainland approximately 6,800 years ago. Stone a…Barrow Island is a 202-square-kilometre island 50 kilometres northwest off the Pilbara coast of Western Australia. The island is the second largest in Western Australia after Dirk Hartog Island. The island was visited by Indigenous Australians approximately 4,000 or more years ago. It separated from the mainland approximately 6,800 years ago. Stone artefacts including several weathered flakes and fragments made of igneous and metamorphic rocks and chert were collected from Barrow Island in the 1960s. Thevenard Island also has evidence of Aboriginal visitation, and it is likely that the nearby Montebello Islands were utilized as well; however, there have been no archaeological finds from these islands.