This particular mapping of Kooragang Island (now part of Hunter Wetlands National Park) has unknown origins. It appears to be mapped in the early 2000s. While the linework is detailed for the section it covers, the attribution is very simplistic including only mangrove and saltmarsh (multipart polygon) categories. It did have the name "Kooragang_veg" differently to the series of Kooragang and Hexham swamp maps titled "koor,year>" which were prepared by Geoffrey Winning, Shortland Wetlands Centre Ltd for the preparation of a management plan for Kooragang and Hexham Swamp Nature Reserves in 1996 for Hunter Region. VIS_ID 390