Billboard backside

There is this billboard just off Interstate 35 near the American Airlines Center. Since I was a kiddo I have been infatuated with it. It is up on a hill so you cannot miss it. And, it used to have a fake waterfall. It was cool. I found the hill that it is on this weekend. It's near the Katy Trail. So I went for a drive to the hill. This was the back side of this monster of a billboard. It is huge. Unforunately I couldn't get any closer because of a chain link fence (the blurry part of the photo).