From Google Earth it appears that in the days, long ago, when you could drive into here, there used to be a roundabout for vehicles to turn around at. It is long gone but it makes a good spot for a cache. I saw an unconfirmed source that indicated that this is where Hume and Hovell crossed the River in 1826. If you look down by the river there appears to have been some sort of ford here at some stage.
Another quote from maccamob's "More Cobblers" in 2007 cache is telling - "This area used to be part rubbish tip and car graveyard, but it is slowly improving. Vehicles are currently prohibited in the reserve as the Council tries to rehabilitate the area from extensive damage. Work also appears to be underway to remove non-native trees from the area. However, new parking areas have been built, landscape works are scheduled to begin this financial year, and hopefully it will be reopened before long. Meanwhile, you are free to explore the area on foot."
It appears that the Council has done their work well!