[Cboldt]

I see a net shadow. If it as you say, is quite a bit of effort to hide something from view above, that could be hidden with simple landscaping.

I'm not exactly sure why the image has so much distortion from flat, but notice all the distortion breaks along straight lines. I think this is just the way GE composes images zoomed in that close.

I'm just sharing my impression and opinion, and have no intention to dissuade you from yours. Take my impression and throw it away or fold it in as you see fit.

[buffaloguy]

I have concluded that it is a tennis court.

Distortions of the software had me fooled.