Claim: The Port River is the western branch of the largest tidal estuary that was used as a shipping channel since the beginning of European settlement of South Australia in 1836 and is located in the  eastern side of Gulf St Vincent.in Western Adelaide, Australia
Evidence: The Port River is the western branch of the largest tidal estuary on the eastern side of Gulf St Vincent. The Port River (officially known as the Port Adelaide River) is part of a tidal estuary located north of the Adelaide city centre in the Australian state of South Australia, and used as a shipping channel since the beginning of European settlement of South Australia in 1836, when Colonel Light selected the site to use as a port. Western Adelaide Australia