TypeIslandDetailsMud Island is a small mangrove island at the entrance to Pumpkin Point Creek on the western shore of the Hawkesbury downstream from Gentlemans Halt. The name appears on a 1904 survey map but it is almost certainly older. CreatorPowell, John P 1994, Placenames of the Greater Hawkesbury Region, Hawkesbury River Enterprises, Berowra, p.83.
Powell, John P 1994, Placenames of the Greater Hawkesbury Region, Hawkesbury River Enterprises, Berowra, p.83., Mud Island. Hornsby Shire, accessed 26/04/2026, https://hornsbyshire.recollect.net.au/nodes/view/4354
