The area I flew over today is an area that I refer to as 'the lookout'.
It was a dirt bike riding area where you could peer over the valley. There were also a bunch of hill climbs and decent trails all through the forest.
A few years back it started getting over used... not just dirt bikes, but also ATVs and offroad trucks/jeeps. As a result the trail scars grew and grew, and really just became massive.
I don't know if the ownership of this land changed, or if the owner got fed up, but they put an end to it.
At first there were huge concrete blocks placed at all the entrances -- but that must not have stopped people from going in there because now there is a chain link fence and no trespassing signs everywhere.
I just wanted to see how the recovery is coming, so I flew over at 80m. There are still a few bald patches on the hills, but otherwise the trails are almost all filled in with vegetation already.