My guess is the new houses along riverside road, Quarry on right hand side of river and yeh yahoos as well :( Its still a very nice spot, but stuffed if i could walk all the way up to the lookout!!!
Here is a link to a Google earth map i just done, so you can see were riverside road and the quarry is. And the tracks we use to drive, some nice rock ledges to drive as well :) Some of my mates before i got my 4x4, use to drive up a rock ledge at the lookout, It was very close to the drop off down to a very deep gully, I would of hated to see someone roll it.
Best to change the map to satellite view.....shows the terrain better
http://maps.google.com/maps/ms?ie=UT...217f478b0d3639