That way you couldn't run out and sue them for trespassing in your space (which you still own ~ like if you stuck a mountain there you'd get it all back eh).
At the same time the federales only get to regulate that airspace if they do, in fact, regulate it.
There have to be some rules around about these little unmanned aircraft ~ and the crowd flying it probably didn't bother finding them.
I'd say that it was just another UFO shot down out in the woods.
Haven’t been there in a few years but they had their own runway and had a fly-in scheduled at the time I was there.